Commit Graph

107 Commits

Author SHA1 Message Date
Johan Hovold 19ff1d8fd1 BACKPORT: gpio: fix memory and reference leaks in gpiochip_add error path
commit 5539b3c938d64a60cb1fc442ac3ce9263d52de0c upstream.

Memory allocated and references taken by of_gpiochip_add and
acpi_gpiochip_add were never released on errors in gpiochip_add (e.g.
failure to find free gpio range).

Fixes: 391c970c0d ("of/gpio: add default of_xlate function if device
has a node pointer")
Fixes: 664e3e5ac64c ("gpio / ACPI: register to ACPI events
automatically")

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
[syphyr: removed references to acpi_gpiochip_remove for 3.10]
Signed-off-by: L R <syphyr@gmail.com>
2019-07-27 22:08:39 +02:00
Alexandre Courbot 4be54ca301 gpiolib: let gpiod_request() return -EPROBE_DEFER
Patch be1a4b brought some improvements to the GPIO error handling code,
but also changed the return value of gpiod_request() when called on a
not yet initialized GPIO descriptor: it now returns -EINVAL instead of
-EPROBE_DEFER, and this affects some drivers.

This patch restores the original behavior for gpiod_request(). It is
safe to do so now that desc_to_gpio() does not rely on the GPIO
descriptor to be initialized. Other functions changed by patch be1a4b
do not see their return value affected, so these are not reverted.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Dr. H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-27 22:08:38 +02:00
Linus Walleij e66d457a9a gpio: return -ENOTSUPP if debounce cannot be set
It appears some drivers are using gpio_set_debounce()
opportunistically, i.e. without knowing whether it works or
not. (Example: input/keyboard/gpio_keys.c) to account for
this use case, return -ENOTSUPP and do not print any
warnings in this case.

Took a round over the other gpio_set_debounce() consumers
to make sure that none of them are relying on the returned
error code to be something specific.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-27 22:08:38 +02:00
Linus Walleij 9421c45634 gpio: improve error path in gpiolib
At several places the gpiolib will proceed to handle a GPIO
descriptor even if it's ->chip member is NULL and no gpiochip
is associated.

Fix this by checking that both the descriptor cookie *and*
the chip pointer are valid.

Also bail out earlier with more specific diagnostic messages
on missing operations for setting as input/output or debounce.

ChangeLog v1->v2:
- Also return -EIO on gpiod_set_debounce() with missing
  operations in the vtable
- Fix indentations.

Suggested-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Frank Rowand <frank.rowand@sonymobile.com>
Cc: Tim Bird <tim.bird@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-27 22:08:37 +02:00
syphyr b1612c1d0a gpio: Handle EPROBE_DEFER while probing
Fixes:

1] WARNING: at ../../../../../../kernel/samsung/msm8976/drivers/gpio/
   gpiolib.c:126 gpio_to_desc+0x2c/0x50()
1] invalid GPIO -517
1] CPU: 5 PID: 1 Comm: swapper/0 Not tainted 3.10.108-g276802a-02434-gb5d2958 #4
1] Call trace:
1] [<ffffffc000087f68>] dump_backtrace+0x0/0x110
1] [<ffffffc0000880e0>] show_stack+0x14/0x1c
1] [<ffffffc000d83c64>] dump_stack+0x20/0x28
1] [<ffffffc00009d95c>] warn_slowpath_common+0x74/0x9c
1] [<ffffffc00009da00>] warn_slowpath_fmt+0x50/0x58
1] [<ffffffc00033fa7c>] gpio_to_desc+0x2c/0x50
1] [<ffffffc000342944>] __gpio_to_irq+0xc/0x18
1] [<ffffffc000d84980>] register_smp2p+0x70/0x88
1] [<ffffffc001462a50>] rdbg_init+0x1f8/0x370
1] [<ffffffc0014358a0>] do_one_initcall+0x8c/0x130
1] [<ffffffc001435af0>] kernel_init_freeable+0x1ac/0x248
1] [<ffffffc000d784fc>] kernel_init+0x14/0xcc
1] ---[ end trace b068b275c415d296 ]---
1] ------------[ cut here ]------------

Change-Id: I63be4c838979e887f05755bc66853182bda6e026
2019-07-27 21:45:55 +02:00
Kaushal Kumar 4a36e44c45 This is the 3.10.84 stable release
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Merge upstream tag 'v3.10.84' into LA.BR.1.3.3

This merge brings us up-to-date as of upstream tag v3.10.84

* tag 'v3.10.84' (317 commits):
  Linux 3.10.84
  fs: Fix S_NOSEC handling
  KVM: x86: make vapics_in_nmi_mode atomic
  MIPS: Fix KVM guest fixmap address
  x86/PCI: Use host bridge _CRS info on Foxconn K8M890-8237A
  powerpc/perf: Fix book3s kernel to userspace backtraces
  arm: KVM: force execution of HCPTR access on VM exit
  Revert "crypto: talitos - convert to use be16_add_cpu()"
  crypto: talitos - avoid memleak in talitos_alg_alloc()
  sctp: Fix race between OOTB responce and route removal
  packet: avoid out of bounds read in round robin fanout
  packet: read num_members once in packet_rcv_fanout()
  bridge: fix br_stp_set_bridge_priority race conditions
  bridge: fix multicast router rlist endless loop
  sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
  Linux 3.10.83
  bus: mvebu: pass the coherency availability information at init time
  KVM: nSVM: Check for NRIPS support before updating control field
  ARM: clk-imx6q: refine sata's parent
  d_walk() might skip too much
  ipv6: update ip6_rt_last_gc every time GC is run
  ipv6: prevent fib6_run_gc() contention
  xfrm: Increase the garbage collector threshold
  Btrfs: make xattr replace operations atomic
  x86/microcode/intel: Guard against stack overflow in the loader
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  hpsa: add missing pci_set_master in kdump path
  hpsa: refine the pci enable/disable handling
  sb_edac: Fix erroneous bytes->gigabytes conversion
  ACPICA: Utilities: Cleanup to remove useless ACPI_PRINTF/FORMAT_xxx helpers.
  ACPICA: Utilities: Cleanup to convert physical address printing formats.
  __ptrace_may_access() should not deny sub-threads
  include/linux/sched.h: don't use task->pid/tgid in same_thread_group/has_group_leader_pid
  netfilter: Zero the tuple in nfnl_cthelper_parse_tuple()
  netfilter: nfnetlink_cthelper: Remove 'const' and '&' to avoid warnings
  config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
  get rid of s_files and files_lock
  fput: turn "list_head delayed_fput_list" into llist_head
  Linux 3.10.82
  lpfc: Add iotag memory barrier
  pipe: iovec: Fix memory corruption when retrying atomic copy as non-atomic
  drm/mgag200: Reject non-character-cell-aligned mode widths
  tracing: Have filter check for balanced ops
  crypto: caam - fix RNG buffer cache alignment
  Linux 3.10.81
  btrfs: cleanup orphans while looking up default subvolume
  btrfs: incorrect handling for fiemap_fill_next_extent return
  cfg80211: wext: clear sinfo struct before calling driver
  mm/memory_hotplug.c: set zone->wait_table to null after freeing it
  drm/i915: Fix DDC probe for passive adapters
  pata_octeon_cf: fix broken build
  ozwpan: unchecked signed subtraction leads to DoS
  ozwpan: divide-by-zero leading to panic
  ozwpan: Use proper check to prevent heap overflow
  MIPS: Fix enabling of DEBUG_STACKOVERFLOW
  ring-buffer-benchmark: Fix the wrong sched_priority of producer
  USB: serial: ftdi_sio: Add support for a Motion Tracker Development Board
  USB: cp210x: add ID for HubZ dual ZigBee and Z-Wave dongle
  block: fix ext_dev_lock lockdep report
  Input: elantech - fix detection of touchpads where the revision matches a known rate
  ALSA: usb-audio: add MAYA44 USB+ mixer control names
  ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion
  ALSA: hda/realtek - Add a fixup for another Acer Aspire 9420
  iio: adis16400: Compute the scan mask from channel indices
  iio: adis16400: Use != channel indices for the two voltage channels
  iio: adis16400: Report pressure channel scale
  xen: netback: read hotplug script once at start of day.
  udp: fix behavior of wrong checksums
  net_sched: invoke ->attach() after setting dev->qdisc
  unix/caif: sk_socket can disappear when state is unlocked
  net: dp83640: fix broken calibration routine.
  bridge: fix parsing of MLDv2 reports
  ipv4: Avoid crashing in ip_error
  net: phy: Allow EEE for all RGMII variants
  Linux 3.10.80
  fs/binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings
  vfs: read file_handle only once in handle_to_path
  ACPI / init: Fix the ordering of acpi_reserve_resources()
  Input: elantech - fix semi-mt protocol for v3 HW
  rtlwifi: rtl8192cu: Fix kernel deadlock
  md/raid5: don't record new size if resize_stripes fails.
  svcrpc: fix potential GSSX_ACCEPT_SEC_CONTEXT decoding failures
  ARM: fix missing syscall trace exit
  ARM: dts: imx27: only map 4 Kbyte for fec registers
  crypto: s390/ghash - Fix incorrect ghash icv buffer handling.
  rt2x00: add new rt2800usb device DWA 130
  libata: Ignore spurious PHY event on LPM policy change
  libata: Add helper to determine when PHY events should be ignored
  ext4: check for zero length extent explicitly
  ext4: convert write_begin methods to stable_page_writes semantics
  mmc: atmel-mci: fix bad variable type for clkdiv
  powerpc: Align TOC to 256 bytes
  usb: gadget: configfs: Fix interfaces array NULL-termination
  usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices
  USB: cp210x: add ID for KCF Technologies PRN device
  USB: pl2303: Remove support for Samsung I330
  USB: visor: Match I330 phone more precisely
  xhci: gracefully handle xhci_irq dead device
  xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256
  xhci: fix isoc endpoint dequeue from advancing too far on transaction error
  target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST
  ASoC: wm8994: correct BCLK DIV 348 to 384
  ASoC: wm8960: fix "RINPUT3" audio route error
  ASoC: mc13783: Fix wrong mask value used in mc13xxx_reg_rmw() calls
  ALSA: hda - Add headphone quirk for Lifebook E752
  ALSA: hda - Add Conexant codecs CX20721, CX20722, CX20723 and CX20724
  d_walk() might skip too much
  lib: Fix strnlen_user() to not touch memory after specified maximum
  hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGE
  libceph: request a new osdmap if lingering request maps to no osd
  lguest: fix out-by-one error in address checking.
  fs, omfs: add NULL terminator in the end up the token list
  KVM: MMU: fix CR4.SMEP=1, CR0.WP=0 with shadow pages
  net: socket: Fix the wrong returns for recvmsg and sendmsg
  kernel: use the gnu89 standard explicitly
  staging, rtl8192e, LLVMLinux: Remove unused inline prototype
  staging: rtl8712, rtl8712: avoid lots of build warnings
  staging, rtl8192e, LLVMLinux: Change extern inline to static inline
  drm/i915: Fix declaration of intel_gmbus_{is_forced_bit/is_port_falid}
  staging: wlags49_h2: fix extern inline functions
  Linux 3.10.79
  ACPICA: Utilities: Cleanup to enforce ACPI_PHYSADDR_TO_PTR()/ACPI_PTR_TO_PHYSADDR().
  ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.
  revert "softirq: Add support for triggering softirq work on softirqs"
  sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND)
  mmc: card: Don't access RPMB partitions for normal read/write
  pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
  drm/i915: Add missing MacBook Pro models with dual channel LVDS
  ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
  ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
  ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
  ARM: dts: imx25: Add #pwm-cells to pwm4
  gpio: sysfs: fix memory leaks and device hotplug
  gpio: unregister gpiochip device before removing it
  xen/console: Update console event channel on resume
  mm/memory-failure: call shake_page() when error hits thp tail page
  nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
  ocfs2: dlm: fix race between purge and get lock resource
  Linux 3.10.78
  ARC: signal handling robustify
  UBI: fix soft lockup in ubi_check_volume()
  Drivers: hv: vmbus: Don't wait after requesting offers
  ARM: dts: dove: Fix uart[23] reg property
  staging: panel: fix lcd type
  usb: gadget: printer: enqueue printer's response for setup request
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  3w-sas: fix command completion race
  3w-9xxx: fix command completion race
  3w-xxxx: fix command completion race
  ext4: fix data corruption caused by unwritten and delayed extents
  rbd: end I/O the entire obj_request on error
  serial: of-serial: Remove device_type = "serial" registration
  ALSA: hda - Fix mute-LED fixed mode
  ALSA: emu10k1: Emu10k2 32 bit DMA mode
  ALSA: emu10k1: Fix card shortname string buffer overflow
  ALSA: emux: Fix mutex deadlock in OSS emulation
  ALSA: emux: Fix mutex deadlock at unloading
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  Linux 3.10.77
  s390: Fix build error
  nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
  memstick: mspro_block: add missing curly braces
  C6x: time: Ensure consistency in __init
  wl18xx: show rx_frames_per_rates as an array as it really is
  lib: memzero_explicit: use barrier instead of OPTIMIZER_HIDE_VAR
  e1000: add dummy allocator to fix race condition between mtu change and netpoll
  ksoftirqd: Enable IRQs and call cond_resched() before poking RCU
  RCU pathwalk breakage when running into a symlink overmounting something
  drm/i915: cope with large i2c transfers
  drm/radeon: fix doublescan modes (v2)
  i2c: core: Export bus recovery functions
  IB/mlx4: Fix WQE LSO segment calculation
  IB/core: don't disallow registering region starting at 0x0
  IB/core: disallow registering 0-sized memory region
  stk1160: Make sure current buffer is released
  mvsas: fix panic on expander attached SATA devices
  Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()
  xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
  xtensa: xtfpga: fix hardware lockup caused by LCD driver
  ACPICA: Utilities: split IO address types from data type models.
  drivers: parport: Kconfig: exclude arm64 for PARPORT_PC
  scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
  UBI: fix check for "too many bytes"
  UBI: initialize LEB number variable
  UBI: fix out of bounds write
  UBI: account for bitflips in both the VID header and data
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
  ext4: make fsync to sync parent dir in no-journal for real this time
  arm64: kernel: compiling issue, need delete read_current_timer()
  video: vgacon: Don't build on arm64
  console: Disable VGA text console support on cris
  drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
  parport: disable PC-style parallel port support on cris
  rtlwifi: rtl8192cu: Add new device ID
  rtlwifi: rtl8192cu: Add new USB ID
  ptrace: fix race between ptrace_resume() and wait_task_stopped()
  fs/binfmt_elf.c: fix bug in loading of PIE binaries
  Input: elantech - fix absolute mode setting on some ASUS laptops
  ALSA: emu10k1: don't deadlock in proc-functions
  usb: core: hub: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: phy: Find the right match in devm_usb_phy_match
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ARM: 8320/1: fix integer overflow in ELF_ET_DYN_BASE
  power_supply: lp8788-charger: Fix leaked power supply on probe fail
  ring-buffer: Replace this_cpu_*() with __this_cpu_*()
  spi: spidev: fix possible arithmetic overflow for multi-transfer message
  cdc-wdm: fix endianness bug in debug statements
  MIPS: Hibernate: flush TLB entries earlier
  KVM: use slowpath for cross page cached accesses
  s390/hibernate: fix save and restore of kernel text section
  KVM: s390: Zero out current VMDB of STSI before including level3 data.
  usb: gadget: composite: enable BESL support
  Btrfs: fix inode eviction infinite loop after cloning into it
  Btrfs: fix log tree corruption when fs mounted with -o discard
  tcp: avoid looping in tcp_send_fin()
  tcp: fix possible deadlock in tcp_send_fin()
  ip_forward: Drop frames with attached skb->sk
  Linux 3.10.76
  dcache: Fix locking bugs in backported "deal with deadlock in d_walk()"
  arc: mm: Fix build failure
  sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
  x86: mm: move mmap_sem unlock from mm_fault_error() to caller
  vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
  vm: add VM_FAULT_SIGSEGV handling support
  deal with deadlock in d_walk()
  move d_rcu from overlapping d_child to overlapping d_alias
  kconfig: Fix warning "‘jump’ may be used uninitialized"
  KVM: x86: SYSENTER emulation is broken
  netfilter: conntrack: disable generic tracking for known protocols
  Bluetooth: Ignore isochronous endpoints for Intel USB bootloader
  Bluetooth: Add support for Intel bootloader devices
  Bluetooth: btusb: Add IMC Networks (Broadcom based)
  Bluetooth: Add firmware update for Atheros 0cf3:311f
  Bluetooth: Enable Atheros 0cf3:311e for firmware upload
  mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
  splice: Apply generic position and size checks to each write
  jfs: fix readdir regression
  serial: 8250_dw: Fix deadlock in LCR workaround
  benet: Call dev_kfree_skby_any instead of kfree_skb.
  ixgb: Call dev_kfree_skby_any instead of dev_kfree_skb.
  tg3: Call dev_kfree_skby_any instead of dev_kfree_skb.
  bnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.
  r8169: Call dev_kfree_skby_any instead of dev_kfree_skb.
  8139too: Call dev_kfree_skby_any instead of dev_kfree_skb.
  8139cp: Call dev_kfree_skby_any instead of kfree_skb.
  tcp: tcp_make_synack() should clear skb->tstamp
  tcp: fix FRTO undo on cumulative ACK of SACKed range
  ipv6: Don't reduce hop limit for an interface
  tcp: prevent fetching dst twice in early demux code
  remove extra definitions of U32_MAX
  conditionally define U32_MAX
  Linux 3.10.75
  pagemap: do not leak physical addresses to non-privileged userspace
  console: Fix console name size mismatch
  IB/mlx4: Saturate RoCE port PMA counters in case of overflow
  kernel.h: define u8, s8, u32, etc. limits
  net: llc: use correct size for sysctl timeout entries
  net: rds: use correct size for max unacked packets and bytes
  ipc: fix compat msgrcv with negative msgtyp
  core, nfqueue, openvswitch: fix compilation warning
  media: s5p-mfc: fix mmap support for 64bit arch
  iscsi target: fix oops when adding reject pdu
  ocfs2: _really_ sync the right range
  be2iscsi: Fix kernel panic when device initialization fails
  cifs: fix use-after-free bug in find_writable_file
  usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
  cpuidle: ACPI: do not overwrite name and description of C0
  dmaengine: omap-dma: Fix memory leak when terminating running transfer
  iio: imu: Use iio_trigger_get for indio_dev->trig assignment
  iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo
  Defer processing of REQ_PREEMPT requests for blocked devices
  USB: ftdi_sio: Use jtag quirk for SNAP Connect E10
  USB: ftdi_sio: Added custom PID for Synapse Wireless product
  radeon: Do not directly dereference pointers to BIOS area.
  writeback: fix possible underflow in write bandwidth calculation
  writeback: add missing INITIAL_JIFFIES init in global_update_bandwidth()
  mm/memory hotplug: postpone the reset of obsolete pgdat
  nbd: fix possible memory leak
  iwlwifi: dvm: run INIT firmware again upon .start()
  IB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic
  IB/core: Avoid leakage from kernel to user space
  tcp: Fix crash in TCP Fast Open
  selinux: fix sel_write_enforce broken return value
  ALSA: hda - Fix headphone pin config for Lifebook T731
  ALSA: usb - Creative USB X-Fi Pro SB1095 volume knob support
  ALSA: hda - Add one more node in the EAPD supporting candidate list
  Linux 3.10.74
  net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
  powerpc/mpc85xx: Add ranges to etsec2 nodes
  hfsplus: fix B-tree corruption after insertion at position 0
  dm: hold suspend_lock while suspending device during device deletion
  vt6655: RFbSetPower fix missing rate RATE_12M
  perf: Fix irq_work 'tail' recursion
  Revert "iwlwifi: mvm: fix failure path when power_update fails in add_interface"
  mac80211: drop unencrypted frames in mesh fwding
  mac80211: disable u-APSD queues by default
  nl80211: ignore HT/VHT capabilities without QoS/WMM
  tcm_qla2xxx: Fix incorrect use of __transport_register_session
  tcm_fc: missing curly braces in ft_invl_hw_context()
  ASoC: wm8955: Fix wrong value references for boolean kctl
  ASoC: adav80x: Fix wrong value references for boolean kctl
  ASoC: ak4641: Fix wrong value references for boolean kctl
  ASoC: wm8904: Fix wrong value references for boolean kctl
  ASoC: wm8903: Fix wrong value references for boolean kctl
  ASoC: wm2000: Fix wrong value references for boolean kctl
  ASoC: wm8731: Fix wrong value references for boolean kctl
  ASoC: tas5086: Fix wrong value references for boolean kctl
  ASoC: wm8960: Fix wrong value references for boolean kctl
  ASoC: cs4271: Fix wrong value references for boolean kctl
  ASoC: sgtl5000: remove useless register write clearing CHRGPUMP_POWERUP

Change-Id: Ib7976ee2c7224e39074157e28db4158db40b00db
Signed-off-by: Kaushal Kumar <kaushalk@codeaurora.org>
2015-09-30 13:25:40 +05:30
Johan Hovold a1f3ecb1f7 gpio: sysfs: fix memory leaks and device hotplug
commit 483d821108791092798f5d230686868112927044 upstream.

Unregister GPIOs requested through sysfs at chip remove to avoid leaking
the associated memory and sysfs entries.

The stale sysfs entries prevented the gpio numbers from being exported
when the gpio range was later reused (e.g. at device reconnect).

This also fixes the related module-reference leak.

Note that kernfs makes sure that any on-going sysfs operations finish
before the class devices are unregistered and that further accesses
fail.

The chip exported flag is used to prevent gpiod exports during removal.
This also makes it harder to trigger, but does not fix, the related race
between gpiochip_remove and export_store, which is really a race with
gpiod_request that needs to be addressed separately.

Also note that this would prevent the crashes (e.g. NULL-dereferences)
at reconnect that affects pre-3.18 kernels, as well as use-after-free on
operations on open attribute files on pre-3.14 kernels (prior to
kernfs).

Fixes: d8f388d8dc ("gpio: sysfs interface")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-17 09:51:32 -07:00
Johan Hovold 864c329b21 gpio: unregister gpiochip device before removing it
commit 01cca93a9491ed95992523ff7e79dd9bfcdea8e0 upstream.

Unregister gpiochip device (used to export information through sysfs)
before removing it internally. This way removal will reverse addition.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-17 09:51:32 -07:00
Ian Maund 068b0551a9 This is the 3.10.73 stable release
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Merge commit 'v3.10.73' into msm-3.10

This merge brings us up to date with upstream kernel.org tag v3.10.73.
As part of the conflict resolution, changes introduced by commit 72684eae7
("arm64: Fix up /proc/cpuinfo") have been intentionally dropped, as they
conflict with Android changes msm-3.10 kernel to solve the problems
in a different way. Since userspace readers of this file may depend on
the existing msm-3.10 implementation, it's left as-is for now. The
commit may later be introduced if it is found to not impact userspaces
paired with this kernel.

* commit 'v3.10.73' (264 commits):
  Linux 3.10.73
  target: Allow Write Exclusive non-reservation holders to READ
  target: Allow AllRegistrants to re-RESERVE existing reservation
  target: Fix R_HOLDER bit usage for AllRegistrants
  target/pscsi: Fix NULL pointer dereference in get_device_type
  iscsi-target: Avoid early conn_logout_comp for iser connections
  target: Fix reference leak in target_get_sess_cmd() error path
  ARM: at91: pm: fix at91rm9200 standby
  ipvs: rerouting to local clients is not needed anymore
  ipvs: add missing ip_vs_pe_put in sync code
  powerpc/smp: Wait until secondaries are active & online
  x86/vdso: Fix the build on GCC5
  x86/fpu: Drop_fpu() should not assume that tsk equals current
  x86/fpu: Avoid math_state_restore() without used_math() in __restore_xstate_sig()
  crypto: aesni - fix memory usage in GCM decryption
  libsas: Fix Kernel Crash in smp_execute_task
  xen-pciback: limit guest control of command register
  nilfs2: fix deadlock of segment constructor during recovery
  regulator: core: Fix enable GPIO reference counting
  regulator: Only enable disabled regulators on resume
  ALSA: hda - Treat stereo-to-mono mix properly
  ALSA: hda - Add workaround for MacBook Air 5,2 built-in mic
  ALSA: hda - Set single_adc_amp flag for CS420x codecs
  ALSA: hda - Don't access stereo amps for mono channel widgets
  ALSA: hda - Fix built-in mic on Compaq Presario CQ60
  ALSA: control: Add sanity checks for user ctl id name string
  spi: pl022: Fix race in giveback() leading to driver lock-up
  tpm/ibmvtpm: Additional LE support for tpm_ibmvtpm_send
  workqueue: fix hang involving racing cancel[_delayed]_work_sync()'s for PREEMPT_NONE
  can: add missing initialisations in CAN related skbuffs
  Change email address for 8250_pci
  virtio_console: init work unconditionally
  fuse: notify: don't move pages
  fuse: set stolen page uptodate
  drm/radeon: drop setting UPLL to sleep mode
  drm/radeon: do a posting read in rs600_set_irq
  drm/radeon: do a posting read in si_set_irq
  drm/radeon: do a posting read in r600_set_irq
  drm/radeon: do a posting read in r100_set_irq
  drm/radeon: do a posting read in evergreen_set_irq
  drm/radeon: fix DRM_IOCTL_RADEON_CS oops
  tcp: make connect() mem charging friendly
  net: compat: Update get_compat_msghdr() to match copy_msghdr_from_user() behaviour
  tcp: fix tcp fin memory accounting
  Revert "net: cx82310_eth: use common match macro"
  rxrpc: bogus MSG_PEEK test in rxrpc_recvmsg()
  caif: fix MSG_OOB test in caif_seqpkt_recvmsg()
  inet_diag: fix possible overflow in inet_diag_dump_one_icsk()
  rds: avoid potential stack overflow
  net: sysctl_net_core: check SNDBUF and RCVBUF for min length
  sparc64: Fix several bugs in memmove().
  sparc: Touch NMI watchdog when walking cpus and calling printk
  sparc: perf: Make counting mode actually work
  sparc: perf: Remove redundant perf_pmu_{en|dis}able calls
  sparc: semtimedop() unreachable due to comparison error
  sparc32: destroy_context() and switch_mm() needs to disable interrupts.
  Linux 3.10.72
  ath5k: fix spontaneus AR5312 freezes
  ACPI / video: Load the module even if ACPI is disabled
  drm/radeon: fix 1 RB harvest config setup for TN/RL
  Drivers: hv: vmbus: incorrect device name is printed when child device is unregistered
  HID: fixup the conflicting keyboard mappings quirk
  HID: input: fix confusion on conflicting mappings
  staging: comedi: cb_pcidas64: fix incorrect AI range code handling
  dm snapshot: fix a possible invalid memory access on unload
  dm: fix a race condition in dm_get_md
  dm io: reject unsupported DISCARD requests with EOPNOTSUPP
  dm mirror: do not degrade the mirror on discard error
  staging: comedi: comedi_compat32.c: fix COMEDI_CMD copy back
  clk: sunxi: Support factor clocks with N factor starting not from 0
  fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit.
  nilfs2: fix potential memory overrun on inode
  IB/qib: Do not write EEPROM
  sg: fix read() error reporting
  ALSA: hda - Add pin configs for ASUS mobo with IDT 92HD73XX codec
  ALSA: pcm: Don't leave PREPARED state after draining
  tty: fix up atime/mtime mess, take four
  sunrpc: fix braino in ->poll()
  procfs: fix race between symlink removals and traversals
  debugfs: leave freeing a symlink body until inode eviction
  autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
  USB: serial: fix potential use-after-free after failed probe
  TTY: fix tty_wait_until_sent on 64-bit machines
  USB: serial: fix infinite wait_until_sent timeout
  net: irda: fix wait_until_sent poll timeout
  xhci: fix reporting of 0-sized URBs in control endpoint
  xhci: Allocate correct amount of scratchpad buffers
  usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
  USB: usbfs: don't leak kernel data in siginfo
  USB: serial: cp210x: Adding Seletek device id's
  KVM: MIPS: Fix trace event to save PC directly
  KVM: emulate: fix CMPXCHG8B on 32-bit hosts
  Btrfs:__add_inode_ref: out of bounds memory read when looking for extended ref.
  Btrfs: fix data loss in the fast fsync path
  btrfs: fix lost return value due to variable shadowing
  iio: imu: adis16400: Fix sign extension
  x86/asm/entry/64: Remove a bogus 'ret_from_fork' optimization
  PM / QoS: remove duplicate call to pm_qos_update_target
  target: Check for LBA + sectors wrap-around in sbc_parse_cdb
  mm/memory.c: actually remap enough memory
  mm/compaction: fix wrong order check in compact_finished()
  mm/nommu.c: fix arithmetic overflow in __vm_enough_memory()
  mm/mmap.c: fix arithmetic overflow in __vm_enough_memory()
  mm/hugetlb: add migration entry check in __unmap_hugepage_range
  team: don't traverse port list using rcu in team_set_mac_address
  udp: only allow UFO for packets from SOCK_DGRAM sockets
  usb: plusb: Add support for National Instruments host-to-host cable
  macvtap: make sure neighbour code can push ethernet header
  net: compat: Ignore MSG_CMSG_COMPAT in compat_sys_{send, recv}msg
  team: fix possible null pointer dereference in team_handle_frame
  net: reject creation of netdev names with colons
  ematch: Fix auto-loading of ematch modules.
  net: phy: Fix verification of EEE support in phy_init_eee
  ipv4: ip_check_defrag should not assume that skb_network_offset is zero
  ipv4: ip_check_defrag should correctly check return value of skb_copy_bits
  gen_stats.c: Duplicate xstats buffer for later use
  rtnetlink: call ->dellink on failure when ->newlink exists
  ipv6: fix ipv6_cow_metrics for non DST_HOST case
  rtnetlink: ifla_vf_policy: fix misuses of NLA_BINARY
  Linux 3.10.71
  libceph: fix double __remove_osd() problem
  libceph: change from BUG to WARN for __remove_osd() asserts
  libceph: assert both regular and lingering lists in __remove_osd()
  MIPS: Export FP functions used by lose_fpu(1) for KVM
  x86, mm/ASLR: Fix stack randomization on 64-bit systems
  blk-throttle: check stats_cpu before reading it from sysfs
  jffs2: fix handling of corrupted summary length
  md/raid1: fix read balance when a drive is write-mostly.
  md/raid5: Fix livelock when array is both resyncing and degraded.
  metag: Fix KSTK_EIP() and KSTK_ESP() macros
  gpio: tps65912: fix wrong container_of arguments
  arm64: compat Fix siginfo_t -> compat_siginfo_t conversion on big endian
  hx4700: regulator: declare full constraints
  KVM: x86: update masterclock values on TSC writes
  KVM: MIPS: Don't leak FPU/DSP to guest
  ARC: fix page address calculation if PAGE_OFFSET != LINUX_LINK_BASE
  ntp: Fixup adjtimex freq validation on 32-bit systems
  kdb: fix incorrect counts in KDB summary command output
  ARM: pxa: add regulator_has_full_constraints to poodle board file
  ARM: pxa: add regulator_has_full_constraints to corgi board file
  vt: provide notifications on selection changes
  usb: core: buffer: smallest buffer should start at ARCH_DMA_MINALIGN
  USB: fix use-after-free bug in usb_hcd_unlink_urb()
  USB: cp210x: add ID for RUGGEDCOM USB Serial Console
  tty: Prevent untrappable signals from malicious program
  axonram: Fix bug in direct_access
  cfq-iosched: fix incorrect filing of rt async cfqq
  cfq-iosched: handle failure of cfq group allocation
  iscsi-target: Drop problematic active_ts_list usage
  NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
  Added Little Endian support to vtpm module
  tpm/tpm_i2c_stm_st33: Fix potential bug in tpm_stm_i2c_send
  tpm: Fix NULL return in tpm_ibmvtpm_get_desired_dma
  tpm_tis: verify interrupt during init
  ARM: 8284/1: sa1100: clear RCSR_SMR on resume
  tracing: Fix unmapping loop in tracing_mark_write
  MIPS: KVM: Deliver guest interrupts after local_irq_disable()
  nfs: don't call blocking operations while !TASK_RUNNING
  mmc: sdhci-pxav3: fix setting of pdata->clk_delay_cycles
  power_supply: 88pm860x: Fix leaked power supply on probe fail
  ALSA: hdspm - Constrain periods to 2 on older cards
  ALSA: off by one bug in snd_riptide_joystick_probe()
  lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3 in interrupt urb
  cpufreq: speedstep-smi: enable interrupts when waiting
  PCI: Fix infinite loop with ROM image of size 0
  PCI: Generate uppercase hex for modalias var in uevent
  HID: i2c-hid: Limit reads to wMaxInputLength bytes for input events
  iwlwifi: mvm: always use mac color zero
  iwlwifi: mvm: fix failure path when power_update fails in add_interface
  iwlwifi: mvm: validate tid and sta_id in ba_notif
  iwlwifi: pcie: disable the SCD_BASE_ADDR when we resume from WoWLAN
  fsnotify: fix handling of renames in audit
  xfs: set superblock buffer type correctly
  xfs: inode unlink does not set AGI buffer type
  xfs: ensure buffer types are set correctly
  Bluetooth: ath3k: workaround the compatibility issue with xHCI controller
  Linux 3.10.70
  rbd: drop an unsafe assertion
  media/rc: Send sync space information on the lirc device
  net: sctp: fix passing wrong parameter header to param_type2af in sctp_process_param
  ppp: deflate: never return len larger than output buffer
  ipv4: tcp: get rid of ugly unicast_sock
  tcp: ipv4: initialize unicast_sock sk_pacing_rate
  bridge: dont send notification when skb->len == 0 in rtnl_bridge_notify
  ipv6: replacing a rt6_info needs to purge possible propagated rt6_infos too
  ping: Fix race in free in receive path
  udp_diag: Fix socket skipping within chain
  ipv4: try to cache dst_entries which would cause a redirect
  net: sctp: fix slab corruption from use after free on INIT collisions
  netxen: fix netxen_nic_poll() logic
  ipv6: stop sending PTB packets for MTU < 1280
  net: rps: fix cpu unplug
  ip: zero sockaddr returned on error queue
  Linux 3.10.69
  crypto: crc32c - add missing crypto module alias
  x86,kvm,vmx: Preserve CR4 across VM entry
  kvm: vmx: handle invvpid vm exit gracefully
  smpboot: Add missing get_online_cpus() in smpboot_register_percpu_thread()
  ALSA: ak411x: Fix stall in work callback
  ASoC: sgtl5000: add delay before first I2C access
  ASoC: atmel_ssc_dai: fix start event for I2S mode
  lib/checksum.c: fix build for generic csum_tcpudp_nofold
  ext4: prevent bugon on race between write/fcntl
  arm64: Fix up /proc/cpuinfo
  nilfs2: fix deadlock of segment constructor over I_SYNC flag
  lib/checksum.c: fix carry in csum_tcpudp_nofold
  mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range
  MIPS: Fix kernel lockup or crash after CPU offline/online
  MIPS: IRQ: Fix disable_irq on CPU IRQs
  PCI: Add NEC variants to Stratus ftServer PCIe DMI check
  gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low
  gpio: sysfs: fix memory leak in gpiod_export_link
  Linux 3.10.68
  target: Drop arbitrary maximum I/O size limit
  iser-target: Fix implicit termination of connections
  iser-target: Handle ADDR_CHANGE event for listener cm_id
  iser-target: Fix connected_handler + teardown flow race
  iser-target: Parallelize CM connection establishment
  iser-target: Fix flush + disconnect completion handling
  iscsi,iser-target: Initiate termination only once
  vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion
  tcm_loop: Fix wrong I_T nexus association
  vhost-scsi: Take configfs group dependency during VHOST_SCSI_SET_ENDPOINT
  ib_isert: Add max_send_sge=2 minimum for control PDU responses
  IB/isert: Adjust CQ size to HW limits
  workqueue: fix subtle pool management issue which can stall whole worker_pool
  gpio: squelch a compiler warning
  efi-pstore: Make efi-pstore return a unique id
  pstore/ram: avoid atomic accesses for ioremapped regions
  pstore: Fix NULL pointer fault if get NULL prz in ramoops_get_next_prz
  pstore: skip zero size persistent ram buffer in traverse
  pstore: clarify clearing of _read_cnt in ramoops_context
  pstore: d_alloc_name() doesn't return an ERR_PTR
  pstore: Fail to unlink if a driver has not defined pstore_erase
  ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE
  ARM: 8108/1: mm: Introduce {pte,pmd}_isset and {pte,pmd}_isclear
  ARM: DMA: ensure that old section mappings are flushed from the TLB
  ARM: 7931/1: Correct virt_addr_valid
  ARM: fix asm/memory.h build error
  ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg().
  ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within atomic.h
  ARM: lpae: fix definition of PTE_HWTABLE_PTRS
  ARM: fix type of PHYS_PFN_OFFSET to unsigned long
  ARM: LPAE: use phys_addr_t in alloc_init_pud()
  ARM: LPAE: use signed arithmetic for mask definitions
  ARM: mm: correct pte_same behaviour for LPAE.
  ARM: 7829/1: Add ".text.unlikely" and ".text.hot" to arm unwind tables
  drivers: net: cpsw: discard dual emac default vlan configuration
  regulator: core: fix race condition in regulator_put()
  spi/pxa2xx: Clear cur_chip pointer before starting next message
  dm cache: fix missing ERR_PTR returns and handling
  dm thin: don't allow messages to be sent to a pool target in READ_ONLY or FAIL mode
  nl80211: fix per-station group key get/del and memory leak
  NFSv4.1: Fix an Oops in nfs41_walk_client_list
  nfs: fix dio deadlock when O_DIRECT flag is flipped
  Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
  ALSA: seq-dummy: remove deadlock-causing events on close
  powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
  can: kvaser_usb: Fix state handling upon BUS_ERROR events
  can: kvaser_usb: Retry the first bulk transfer on -ETIMEDOUT
  can: kvaser_usb: Send correct context to URB completion
  can: kvaser_usb: Do not sleep in atomic context
  ASoC: wm8960: Fix capture sample rate from 11250 to 11025
  spi: dw-mid: fix FIFO size

Signed-off-by: Ian Maund <imaund@codeaurora.org>
2015-04-24 18:14:57 -07:00
Ian Maund 8b08aa9e75 This is the 3.10.67 stable release
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Merge commit 'v3.10.67' into msm-3.10

This merge brings us up to date with upstream kernel.org tag v3.10.67.
It also contains changes to allow forbidden warnings introduced in
the commit 'core, nfqueue, openvswitch: Orphan frags in skb_zerocopy
and handle errors'. Once upstream has corrected these warnings, the
changes to scripts/gcc-wrapper.py, in this commit, can be reverted.

* commit 'v3.10.67' (915 commits)
  Linux 3.10.67
  md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants.
  ext4: fix warning in ext4_da_update_reserve_space()
  quota: provide interface for readding allocated space into reserved space
  crypto: add missing crypto module aliases
  crypto: include crypto- module prefix in template
  crypto: prefix module autoloading with "crypto-"
  drbd: merge_bvec_fn: properly remap bvm->bi_bdev
  Revert "swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single"
  ipvs: uninitialized data with IP_VS_IPV6
  KEYS: close race between key lookup and freeing
  sata_dwc_460ex: fix resource leak on error path
  x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs
  x86, tls: Interpret an all-zero struct user_desc as "no segment"
  x86, tls, ldt: Stop checking lm in LDT_empty
  x86/tsc: Change Fast TSC calibration failed from error to info
  x86, hyperv: Mark the Hyper-V clocksource as being continuous
  clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
  can: dev: fix crtlmode_supported check
  bus: mvebu-mbus: fix support of MBus window 13
  ARM: dts: imx25: Fix PWM "per" clocks
  time: adjtimex: Validate the ADJ_FREQUENCY values
  time: settimeofday: Validate the values of tv from user
  dm cache: share cache-metadata object across inactive and active DM tables
  ipr: wait for aborted command responses
  drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES
  scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore
  ALSA: usb-audio: Add mic volume fix quirk for Logitech Webcam C210
  libata: prevent HSM state change race between ISR and PIO
  pinctrl: Fix two deadlocks
  gpio: sysfs: fix gpio device-attribute leak
  gpio: sysfs: fix gpio-chip device-attribute leak
  Linux 3.10.66
  s390/3215: fix tty output containing tabs
  s390/3215: fix hanging console issue
  fsnotify: next_i is freed during fsnotify_unmount_inodes.
  netfilter: ipset: small potential read beyond the end of buffer
  mmc: sdhci: Fix sleep in atomic after inserting SD card
  LOCKD: Fix a race when initialising nlmsvc_timeout
  x86, um: actually mark system call tables readonly
  um: Skip futex_atomic_cmpxchg_inatomic() test
  decompress_bunzip2: off by one in get_next_block()
  ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances
  ARM: omap5/dra7xx: Fix frequency typos
  ARM: clk-imx6q: fix video divider for rev T0 1.0
  ARM: imx6q: drop unnecessary semicolon
  ARM: dts: imx25: Fix the SPI1 clocks
  Input: I8042 - add Acer Aspire 7738 to the nomux list
  Input: i8042 - reset keyboard to fix Elantech touchpad detection
  can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels
  can: kvaser_usb: Reset all URB tx contexts upon channel close
  can: kvaser_usb: Don't free packets when tight on URBs
  USB: keyspan: fix null-deref at probe
  USB: cp210x: add IDs for CEL USB sticks and MeshWorks devices
  USB: cp210x: fix ID for production CEL MeshConnect USB Stick
  usb: dwc3: gadget: Stop TRB preparation after limit is reached
  usb: dwc3: gadget: Fix TRB preparation during SG
  OHCI: add a quirk for ULi M5237 blocking on reset
  gpiolib: of: Correct error handling in of_get_named_gpiod_flags
  NFSv4.1: Fix client id trunking on Linux
  ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing
  vfio-pci: Fix the check on pci device type in vfio_pci_probe()
  uvcvideo: Fix destruction order in uvc_delete()
  smiapp: Take mutex during PLL update in sensor initialisation
  af9005: fix kernel panic on init if compiled without IR
  smiapp-pll: Correct clock debug prints
  video/logo: prevent use of logos after they have been freed
  storvsc: ring buffer failures may result in I/O freeze
  iscsi-target: Fail connection on short sendmsg writes
  hp_accel: Add support for HP ZBook 15
  cfg80211: Fix 160 MHz channels with 80+80 and 160 MHz drivers
  ARC: [nsimosci] move peripherals to match model to FPGA
  drm/i915: Force the CS stall for invalidate flushes
  drm/i915: Invalidate media caches on gen7
  drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
  drm/radeon: check the right ring in radeon_evict_flags()
  drm/vmwgfx: Fix fence event code
  enic: fix rx skb checksum
  alx: fix alx_poll()
  tcp: Do not apply TSO segment limit to non-TSO packets
  tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts
  netlink: Don't reorder loads/stores before marking mmap netlink frame as available
  netlink: Always copy on mmap TX.
  Linux 3.10.65
  mm: Don't count the stack guard page towards RLIMIT_STACK
  mm: propagate error from stack expansion even for guard page
  mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
  perf session: Do not fail on processing out of order event
  perf: Fix events installation during moving group
  perf/x86/intel/uncore: Make sure only uncore events are collected
  Btrfs: don't delay inode ref updates during log replay
  ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP
  scripts/kernel-doc: don't eat struct members with __aligned
  nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races
  nfsd4: fix xdr4 inclusion of escaped char
  fs: nfsd: Fix signedness bug in compare_blob
  serial: samsung: wait for transfer completion before clock disable
  writeback: fix a subtle race condition in I_DIRTY clearing
  cdc-acm: memory leak in error case
  genhd: check for int overflow in disk_expand_part_tbl()
  USB: cdc-acm: check for valid interfaces
  ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
  ALSA: hda - using uninitialized data
  ALSA: usb-audio: extend KEF X300A FU 10 tweak to Arcam rPAC
  driver core: Fix unbalanced device reference in drivers_probe
  x86, vdso: Use asm volatile in __getcpu
  x86_64, vdso: Fix the vdso address randomization algorithm
  HID: Add a new id 0x501a for Genius MousePen i608X
  HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
  HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
  HID: i2c-hid: prevent buffer overflow in early IRQ
  HID: i2c-hid: fix race condition reading reports
  iommu/vt-d: Fix an off-by-one bug in __domain_mapping()
  UBI: Fix double free after do_sync_erase()
  UBI: Fix invalid vfree()
  pstore-ram: Allow optional mapping with pgprot_noncached
  pstore-ram: Fix hangs by using write-combine mappings
  PCI: Restore detection of read-only BARs
  ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
  ASoC: max98090: Fix ill-defined sidetone route
  ASoC: sigmadsp: Refuse to load firmware files with a non-supported version
  ath5k: fix hardware queue index assignment
  swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single
  can: peak_usb: fix memset() usage
  can: peak_usb: fix cleanup sequence order in case of error during init
  ath9k: fix BE/BK queue order
  ath9k_hw: fix hardware queue allocation
  ocfs2: fix journal commit deadlock
  Linux 3.10.64
  Btrfs: fix fs corruption on transaction abort if device supports discard
  Btrfs: do not move em to modified list when unpinning
  eCryptfs: Remove buggy and unnecessary write in file name decode routine
  eCryptfs: Force RO mount when encrypted view is enabled
  udf: Verify symlink size before loading it
  exit: pidns: alloc_pid() leaks pid_namespace if child_reaper is exiting
  ncpfs: return proper error from NCP_IOC_SETROOT ioctl
  crypto: af_alg - fix backlog handling
  userns: Unbreak the unprivileged remount tests
  userns: Allow setting gid_maps without privilege when setgroups is disabled
  userns: Add a knob to disable setgroups on a per user namespace basis
  userns: Rename id_map_mutex to userns_state_mutex
  userns: Only allow the creator of the userns unprivileged mappings
  userns: Check euid no fsuid when establishing an unprivileged uid mapping
  userns: Don't allow unprivileged creation of gid mappings
  userns: Don't allow setgroups until a gid mapping has been setablished
  userns: Document what the invariant required for safe unprivileged mappings.
  groups: Consolidate the setgroups permission checks
  umount: Disallow unprivileged mount force
  mnt: Update unprivileged remount test
  mnt: Implicitly add MNT_NODEV on remount when it was implicitly added by mount
  mac80211: free management frame keys when removing station
  mac80211: fix multicast LED blinking and counter
  KEYS: Fix stale key registration at error path
  isofs: Fix unchecked printing of ER records
  x86/tls: Don't validate lm in set_thread_area() after all
  dm space map metadata: fix sm_bootstrap_get_nr_blocks()
  dm bufio: fix memleak when using a dm_buffer's inline bio
  nfs41: fix nfs4_proc_layoutget error handling
  megaraid_sas: corrected return of wait_event from abort frame path
  mmc: block: add newline to sysfs display of force_ro
  mfd: tc6393xb: Fail ohci suspend if full state restore is required
  md/bitmap: always wait for writes on unplug.
  x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit
  x86_64, switch_to(): Load TLS descriptors before switching DS and ES
  x86/tls: Disallow unusual TLS segments
  x86/tls: Validate TLS entries to protect espfix
  isofs: Fix infinite looping over CE entries
  Linux 3.10.63
  ALSA: usb-audio: Don't resubmit pending URBs at MIDI error recovery
  powerpc: 32 bit getcpu VDSO function uses 64 bit instructions
  ARM: sched_clock: Load cycle count after epoch stabilizes
  igb: bring link up when PHY is powered up
  ext2: Fix oops in ext2_get_block() called from ext2_quota_write()
  nEPT: Nested INVEPT
  net: sctp: use MAX_HEADER for headroom reserve in output path
  net: mvneta: fix Tx interrupt delay
  rtnetlink: release net refcnt on error in do_setlink()
  net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
  tg3: fix ring init when there are more TX than RX channels
  ipv6: gre: fix wrong skb->protocol in WCCP
  sata_fsl: fix error handling of irq_of_parse_and_map
  ahci: disable MSI on SAMSUNG 0xa800 SSD
  AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
  media: smiapp: Only some selection targets are settable
  drm/i915: Unlock panel even when LVDS is disabled
  drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
  i2c: davinci: generate STP always when NACK is received
  i2c: omap: fix i207 errata handling
  i2c: omap: fix NACK and Arbitration Lost irq handling
  xen-netfront: Remove BUGs on paged skb data which crosses a page boundary
  mm: fix swapoff hang after page migration and fork
  mm: frontswap: invalidate expired data on a dup-store failure
  Linux 3.10.62
  nfsd: Fix ACL null pointer deref
  powerpc/powernv: Honor the generic "no_64bit_msi" flag
  bnx2fc: do not add shared skbs to the fcoe_rx_list
  nfsd4: fix leak of inode reference on delegation failure
  nfsd: Fix slot wake up race in the nfsv4.1 callback code
  rt2x00: do not align payload on modern H/W
  can: dev: avoid calling kfree_skb() from interrupt context
  spi: dw: Fix dynamic speed change.
  iser-target: Handle DEVICE_REMOVAL event on network portal listener correctly
  target: Don't call TFO->write_pending if data_length == 0
  srp-target: Retry when QP creation fails with ENOMEM
  Input: xpad - use proper endpoint type
  ARM: 8222/1: mvebu: enable strex backoff delay
  ARM: 8216/1: xscale: correct auxiliary register in suspend/resume
  ALSA: usb-audio: Add ctrl message delay quirk for Marantz/Denon devices
  can: esd_usb2: fix memory leak on disconnect
  USB: xhci: don't start a halted endpoint before its new dequeue is set
  usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
  usb: serial: ftdi_sio: add PIDs for Matrix Orbital products
  USB: serial: cp210x: add IDs for CEL MeshConnect USB Stick
  USB: keyspan: fix tty line-status reporting
  USB: keyspan: fix overrun-error reporting
  USB: ssu100: fix overrun-error reporting
  iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask
  powerpc/pseries: Fix endiannes issue in RTAS call from xmon
  powerpc/pseries: Honor the generic "no_64bit_msi" flag
  of/base: Fix PowerPC address parsing hack
  ASoC: wm_adsp: Avoid attempt to free buffers that might still be in use
  ASoC: sgtl5000: Fix SMALL_POP bit definition
  PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
  ipx: fix locking regression in ipx_sendmsg and ipx_recvmsg
  pptp: fix stack info leak in pptp_getname()
  qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem
  ieee802154: fix error handling in ieee802154fake_probe()
  ipv4: Fix incorrect error code when adding an unreachable route
  inetdevice: fixed signed integer overflow
  sparc64: Fix constraints on swab helpers.
  uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME
  x86, mm: Set NX across entire PMD at boot
  x86: Require exact match for 'noxsave' command line option
  x86_64, traps: Rework bad_iret
  x86_64, traps: Stop using IST for #SS
  x86_64, traps: Fix the espfix64 #DF fixup and rewrite it in C
  MIPS: Loongson: Make platform serial setup always built-in.
  MIPS: oprofile: Fix backtrace on 64-bit kernel
  Linux 3.10.61
  mm: memcg: handle non-error OOM situations more gracefully
  mm: memcg: do not trap chargers with full callstack on OOM
  mm: memcg: rework and document OOM waiting and wakeup
  mm: memcg: enable memcg OOM killer only for user faults
  x86: finish user fault error path with fatal signal
  arch: mm: pass userspace fault flag to generic fault handler
  arch: mm: do not invoke OOM killer on kernel fault OOM
  arch: mm: remove obsolete init OOM protection
  mm: invoke oom-killer from remaining unconverted page fault handlers
  net: sctp: fix skb_over_panic when receiving malformed ASCONF chunks
  net: sctp: fix panic on duplicate ASCONF chunks
  net: sctp: fix remote memory pressure from excessive queueing
  KVM: x86: Don't report guest userspace emulation error to userspace
  SCSI: hpsa: fix a race in cmd_free/scsi_done
  net/mlx4_en: Fix BlueFlame race
  ARM: Correct BUG() assembly to ensure it is endian-agnostic
  perf/x86/intel: Use proper dTLB-load-misses event on IvyBridge
  mei: bus: fix possible boundaries violation
  perf: Handle compat ioctl
  MIPS: Fix forgotten preempt_enable() when CPU has inclusive pcaches
  dell-wmi: Fix access out of memory
  ARM: probes: fix instruction fetch order with <asm/opcodes.h>
  br: fix use of ->rx_handler_data in code executed on non-rx_handler path
  netfilter: nf_nat: fix oops on netns removal
  netfilter: xt_bpf: add mising opaque struct sk_filter definition
  netfilter: nf_log: release skbuff on nlmsg put failure
  netfilter: nfnetlink_log: fix maximum packet length logged to userspace
  netfilter: nf_log: account for size of NLMSG_DONE attribute
  ipc: always handle a new value of auto_msgmni
  clocksource: Remove "weak" from clocksource_default_clock() declaration
  kgdb: Remove "weak" from kgdb_arch_pc() declaration
  media: ttusb-dec: buffer overflow in ioctl
  NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return
  nfs: Fix use of uninitialized variable in nfs_getattr()
  NFS: Don't try to reclaim delegation open state if recovery failed
  NFSv4: Ensure that we remove NFSv4.0 delegations when state has expired
  Input: alps - allow up to 2 invalid packets without resetting device
  Input: alps - ignore potential bare packets when device is out of sync
  dm raid: ensure superblock's size matches device's logical block size
  dm btree: fix a recursion depth bug in btree walking code
  block: Fix computation of merged request priority
  parisc: Use compat layer for msgctl, shmat, shmctl and semtimedop syscalls
  scsi: only re-lock door after EH on devices that were reset
  nfs: fix pnfs direct write memory leak
  firewire: cdev: prevent kernel stack leaking into ioctl arguments
  arm64: __clear_user: handle exceptions on strb
  ARM: 8198/1: make kuser helpers depend on MMU
  drm/radeon: add missing crtc unlock when setting up the MC
  mac80211: fix use-after-free in defragmentation
  macvtap: Fix csum_start when VLAN tags are present
  iwlwifi: configure the LTR
  libceph: do not crash on large auth tickets
  xtensa: re-wire umount syscall to sys_oldumount
  ALSA: usb-audio: Fix memory leak in FTU quirk
  ahci: disable MSI instead of NCQ on Samsung pci-e SSDs on macbooks
  ahci: Add Device IDs for Intel Sunrise Point PCH
  audit: keep inode pinned
  x86, x32, audit: Fix x32's AUDIT_ARCH wrt audit
  sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks
  sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().
  sparc64: Fix crashes in schizo_pcierr_intr_other().
  sunvdc: don't call VD_OP_GET_VTOC
  vio: fix reuse of vio_dring slot
  sunvdc: limit each sg segment to a page
  sunvdc: compute vdisk geometry from capacity
  sunvdc: add cdrom and v1.1 protocol support
  net: sctp: fix memory leak in auth key management
  net: sctp: fix NULL pointer dereference in af->from_addr_param on malformed packet
  gre6: Move the setting of dev->iflink into the ndo_init functions.
  ip6_tunnel: Use ip6_tnl_dev_init as the ndo_init function.
  Linux 3.10.60
  libceph: ceph-msgr workqueue needs a resque worker
  Btrfs: fix kfree on list_head in btrfs_lookup_csums_range error cleanup
  of: Fix overflow bug in string property parsing functions
  sysfs: driver core: Fix glue dir race condition by gdp_mutex
  i2c: at91: don't account as iowait
  acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80
  rbd: Fix error recovery in rbd_obj_read_sync()
  drm/radeon: remove invalid pci id
  usb: gadget: udc: core: fix kernel oops with soft-connect
  usb: gadget: function: acm: make f_acm pass USB20CV Chapter9
  usb: dwc3: gadget: fix set_halt() bug with pending transfers
  crypto: algif - avoid excessive use of socket buffer in skcipher
  mm: Remove false WARN_ON from pagecache_isize_extended()
  x86, apic: Handle a bad TSC more gracefully
  posix-timers: Fix stack info leak in timer_create()
  mac80211: fix typo in starting baserate for rts_cts_rate_idx
  PM / Sleep: fix recovery during resuming from hibernation
  tty: Fix high cpu load if tty is unreleaseable
  quota: Properly return errors from dquot_writeback_dquots()
  ext3: Don't check quota format when there are no quota files
  nfsd4: fix crash on unknown operation number
  cpc925_edac: Report UE events properly
  e7xxx_edac: Report CE events properly
  i3200_edac: Report CE events properly
  i82860_edac: Report CE events properly
  scsi: Fix error handling in SCSI_IOCTL_SEND_COMMAND
  lib/bitmap.c: fix undefined shift in __bitmap_shift_{left|right}()
  cgroup/kmemleak: add kmemleak_free() for cgroup deallocations.
  usb: Do not allow usb_alloc_streams on unconfigured devices
  USB: opticon: fix non-atomic allocation in write path
  usb-storage: handle a skipped data phase
  spi: pxa2xx: toggle clocks on suspend if not disabled by runtime PM
  spi: pl022: Fix incorrect dma_unmap_sg
  usb: dwc3: gadget: Properly initialize LINK TRB
  wireless: rt2x00: add new rt2800usb device
  USB: option: add Haier CE81B CDMA modem
  usb: option: add support for Telit LE910
  USB: cdc-acm: only raise DTR on transitions from B0
  USB: cdc-acm: add device id for GW Instek AFG-2225
  usb: serial: ftdi_sio: add "bricked" FTDI device PID
  usb: serial: ftdi_sio: add Awinda Station and Dongle products
  USB: serial: cp210x: add Silicon Labs 358x VID and PID
  serial: Fix divide-by-zero fault in uart_get_divisor()
  staging:iio:ade7758: Remove "raw" from channel name
  staging:iio:ade7758: Fix check if channels are enabled in prenable
  staging:iio:ade7758: Fix NULL pointer deref when enabling buffer
  staging:iio:ad5933: Drop "raw" from channel names
  staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
  OOM, PM: OOM killed task shouldn't escape PM suspend
  freezer: Do not freeze tasks killed by OOM killer
  ext4: fix oops when loading block bitmap failed
  cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy
  ext4: fix overflow when updating superblock backups after resize
  ext4: check s_chksum_driver when looking for bg csum presence
  ext4: fix reservation overflow in ext4_da_write_begin
  ext4: add ext4_iget_normal() which is to be used for dir tree lookups
  ext4: grab missed write_count for EXT4_IOC_SWAP_BOOT
  ext4: don't check quota format when there are no quota files
  ext4: check EA value offset when loading
  jbd2: free bh when descriptor block checksum fails
  MIPS: tlbex: Properly fix HUGE TLB Refill exception handler
  target: Fix APTPL metadata handling for dynamic MappedLUNs
  target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE
  qla_target: don't delete changed nacls
  ARC: Update order of registers in KGDB to match GDB 7.5
  ARC: [nsimosci] Allow "headless" models to boot
  KVM: x86: Emulator fixes for eip canonical checks on near branches
  KVM: x86: Fix wrong masking on relative jump/call
  kvm: x86: don't kill guest on unknown exit reason
  KVM: x86: Check non-canonical addresses upon WRMSR
  KVM: x86: Improve thread safety in pit
  KVM: x86: Prevent host from panicking on shared MSR writes.
  kvm: fix excessive pages un-pinning in kvm_iommu_map error path.
  media: tda7432: Fix setting TDA7432_MUTE bit for TDA7432_RF register
  media: ds3000: fix LNB supply voltage on Tevii S480 on initialization
  media: em28xx-v4l: give back all active video buffers to the vb2 core properly on streaming stop
  media: v4l2-common: fix overflow in v4l_bound_align_image()
  drm/nouveau/bios: memset dcb struct to zero before parsing
  drm/tilcdc: Fix the error path in tilcdc_load()
  drm/ast: Fix HW cursor image
  Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
  Input: i8042 - add noloop quirk for Asus X750LN
  framebuffer: fix border color
  modules, lock around setting of MODULE_STATE_UNFORMED
  dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
  block: fix alignment_offset math that assumes io_min is a power-of-2
  drbd: compute the end before rb_insert_augmented()
  dm bufio: update last_accessed when relinking a buffer
  virtio_pci: fix virtio spec compliance on restore
  selinux: fix inode security list corruption
  pstore: Fix duplicate {console,ftrace}-efi entries
  mfd: rtsx_pcr: Fix MSI enable error handling
  mnt: Prevent pivot_root from creating a loop in the mount tree
  UBI: add missing kmem_cache_free() in process_pool_aeb error path
  random: add and use memzero_explicit() for clearing data
  crypto: more robust crypto_memneq
  fix misuses of f_count() in ppp and netlink
  kill wbuf_queued/wbuf_dwork_lock
  ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode
  evm: check xattr value length and type in evm_inode_setxattr()
  x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
  x86_64, entry: Fix out of bounds read on sysenter
  x86_64, entry: Filter RFLAGS.NT on entry from userspace
  x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED
  x86, fpu: shift drop_init_fpu() from save_xstate_sig() to handle_signal()
  x86, fpu: __restore_xstate_sig()->math_state_restore() needs preempt_disable()
  x86: Reject x32 executables if x32 ABI not supported
  vfs: fix data corruption when blocksize < pagesize for mmaped data
  UBIFS: fix free log space calculation
  UBIFS: fix a race condition
  UBIFS: remove mst_mutex
  fs: Fix theoretical division by 0 in super_cache_scan().
  fs: make cont_expand_zero interruptible
  mmc: rtsx_pci_sdmmc: fix incorrect last byte in R2 response
  libata-sff: Fix controllers with no ctl port
  pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
  Revert "percpu: free percpu allocation info for uniprocessor system"
  lockd: Try to reconnect if statd has moved
  drivers/net: macvtap and tun depend on INET
  ipv4: dst_entry leak in ip_send_unicast_reply()
  ax88179_178a: fix bonding failure
  ipv4: fix nexthop attlen check in fib_nh_match
  tracing/syscalls: Ignore numbers outside NR_syscalls' range
  Linux 3.10.59
  ecryptfs: avoid to access NULL pointer when write metadata in xattr
  ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks
  ALSA: usb-audio: Add support for Steinberg UR22 USB interface
  ALSA: emu10k1: Fix deadlock in synth voice lookup
  ALSA: pcm: use the same dma mmap codepath both for arm and arm64
  arm64: compat: fix compat types affecting struct compat_elf_prpsinfo
  spi: dw-mid: terminate ongoing transfers at exit
  kernel: add support for gcc 5
  fanotify: enable close-on-exec on events' fd when requested in fanotify_init()
  mm: clear __GFP_FS when PF_MEMALLOC_NOIO is set
  Bluetooth: Fix issue with USB suspend in btusb driver
  Bluetooth: Fix HCI H5 corrupted ack value
  rt2800: correct BBP1_TX_POWER_CTRL mask
  PCI: Generate uppercase hex for modalias interface class
  PCI: Increase IBM ipr SAS Crocodile BARs to at least system page size
  iwlwifi: Add missing PCI IDs for the 7260 series
  NFSv4.1: Fix an NFSv4.1 state renewal regression
  NFSv4: fix open/lock state recovery error handling
  NFSv4: Fix lock recovery when CREATE_SESSION/SETCLIENTID_CONFIRM fails
  lzo: check for length overrun in variable length encoding.
  Revert "lzo: properly check for overruns"
  Documentation: lzo: document part of the encoding
  m68k: Disable/restore interrupts in hwreg_present()/hwreg_write()
  Drivers: hv: vmbus: Fix a bug in vmbus_open()
  Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()
  Drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl()
  Drivers: hv: vmbus: Cleanup vmbus_post_msg()
  firmware_class: make sure fw requests contain a name
  qla2xxx: Use correct offset to req-q-out for reserve calculation
  mptfusion: enable no_write_same for vmware scsi disks
  be2iscsi: check ip buffer before copying
  regmap: fix NULL pointer dereference in _regmap_write/read
  regmap: debugfs: fix possbile NULL pointer dereference
  spi: dw-mid: check that DMA was inited before exit
  spi: dw-mid: respect 8 bit mode
  x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead
  kvm: don't take vcpu mutex for obviously invalid vcpu ioctls
  KVM: s390: unintended fallthrough for external call
  kvm: x86: fix stale mmio cache bug
  fs: Add a missing permission check to do_umount
  Btrfs: fix race in WAIT_SYNC ioctl
  Btrfs: fix build_backref_tree issue with multiple shared blocks
  Btrfs: try not to ENOSPC on log replay
  Linux 3.10.58
  USB: cp210x: add support for Seluxit USB dongle
  USB: serial: cp210x: added Ketra N1 wireless interface support
  USB: Add device quirk for ASUS T100 Base Station keyboard
  ipv6: reallocate addrconf router for ipv6 address when lo device up
  tcp: fixing TLP's FIN recovery
  sctp: handle association restarts when the socket is closed.
  ip6_gre: fix flowi6_proto value in xmit path
  hyperv: Fix a bug in netvsc_start_xmit()
  tg3: Allow for recieve of full-size 8021AD frames
  tg3: Work around HW/FW limitations with vlan encapsulated frames
  l2tp: fix race while getting PMTU on PPP pseudo-wire
  openvswitch: fix panic with multiple vlan headers
  packet: handle too big packets for PACKET_V3
  tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
  sit: Fix ipip6_tunnel_lookup device matching criteria
  myri10ge: check for DMA mapping errors
  Linux 3.10.57
  cpufreq: ondemand: Change the calculation of target frequency
  cpufreq: Fix wrong time unit conversion
  nl80211: clear skb cb before passing to netlink
  drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
  jiffies: Fix timeval conversion to jiffies
  md/raid5: disable 'DISCARD' by default due to safety concerns.
  media: vb2: fix VBI/poll regression
  mm: numa: Do not mark PTEs pte_numa when splitting huge pages
  mm, thp: move invariant bug check out of loop in __split_huge_page_map
  ring-buffer: Fix infinite spin in reading buffer
  init/Kconfig: Fix HAVE_FUTEX_CMPXCHG to not break up the EXPERT menu
  perf: fix perf bug in fork()
  udf: Avoid infinite loop when processing indirect ICBs
  Linux 3.10.56
  vm_is_stack: use for_each_thread() rather then buggy while_each_thread()
  oom_kill: add rcu_read_lock() into find_lock_task_mm()
  oom_kill: has_intersects_mems_allowed() needs rcu_read_lock()
  oom_kill: change oom_kill.c to use for_each_thread()
  introduce for_each_thread() to replace the buggy while_each_thread()
  kernel/fork.c:copy_process(): unify CLONE_THREAD-or-thread_group_leader code
  arm: multi_v7_defconfig: Enable Zynq UART driver
  ext2: Fix fs corruption in ext2_get_xip_mem()
  serial: 8250_dma: check the result of TX buffer mapping
  ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
  netfilter: nf_conntrack: avoid large timeout for mid-stream pickup
  PM / sleep: Use valid_state() for platform-dependent sleep states only
  PM / sleep: Add state field to pm_states[] entries
  ipvs: fix ipv6 hook registration for local replies
  ipvs: Maintain all DSCP and ECN bits for ipv6 tun forwarding
  ipvs: avoid netns exit crash on ip_vs_conn_drop_conntrack
  md/raid1: fix_read_error should act on all non-faulty devices.
  media: cx18: fix kernel oops with tda8290 tuner
  Fix nasty 32-bit overflow bug in buffer i/o code.
  perf kmem: Make it work again on non NUMA machines
  perf: Fix a race condition in perf_remove_from_context()
  alarmtimer: Lock k_itimer during timer callback
  alarmtimer: Do not signal SIGEV_NONE timers
  parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds
  powerpc/perf: Fix ABIv2 kernel backtraces
  sched: Fix unreleased llc_shared_mask bit during CPU hotplug
  ocfs2/dlm: do not get resource spinlock if lockres is new
  nilfs2: fix data loss with mmap()
  fs/notify: don't show f_handle if exportfs_encode_inode_fh failed
  fsnotify/fdinfo: use named constants instead of hardcoded values
  kcmp: fix standard comparison bug
  Revert "mac80211: disable uAPSD if all ACs are under ACM"
  usb: dwc3: core: fix ordering for PHY suspend
  usb: dwc3: core: fix order of PM runtime calls
  usb: host: xhci: fix compliance mode workaround
  genhd: fix leftover might_sleep() in blk_free_devt()
  lockd: fix rpcbind crash on lockd startup failure
  rtlwifi: rtl8192cu: Add new ID
  percpu: perform tlb flush after pcpu_map_pages() failure
  percpu: fix pcpu_alloc_pages() failure path
  percpu: free percpu allocation info for uniprocessor system
  ata_piix: Add Device IDs for Intel 9 Series PCH
  Input: i8042 - add nomux quirk for Avatar AVIU-145A6
  Input: i8042 - add Fujitsu U574 to no_timeout dmi table
  Input: atkbd - do not try 'deactivate' keyboard on any LG laptops
  Input: elantech - fix detection of touchpad on ASUS s301l
  Input: synaptics - add support for ForcePads
  Input: serport - add compat handling for SPIOCSTYPE ioctl
  dm crypt: fix access beyond the end of allocated space
  block: Fix dev_t minor allocation lifetime
  workqueue: apply __WQ_ORDERED to create_singlethread_workqueue()
  Revert "iwlwifi: dvm: don't enable CTS to self"
  SCSI: libiscsi: fix potential buffer overrun in __iscsi_conn_send_pdu
  NFC: microread: Potential overflows in microread_target_discovered()
  iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid
  iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure
  Target/iser: Don't put isert_conn inside disconnected handler
  Target/iser: Get isert_conn reference once got to connected_handler
  iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name
  iio:magnetometer: bugfix magnetometers gain values
  iio: adc: ad_sigma_delta: Fix indio_dev->trig assignment
  iio: st_sensors: Fix indio_dev->trig assignment
  iio: meter: ade7758: Fix indio_dev->trig assignment
  iio: inv_mpu6050: Fix indio_dev->trig assignment
  iio: gyro: itg3200: Fix indio_dev->trig assignment
  iio:trigger: modify return value for iio_trigger_get
  CIFS: Fix SMB2 readdir error handling
  CIFS: Fix directory rename error
  ASoC: davinci-mcasp: Correct rx format unit configuration
  shmem: fix nlink for rename overwrite directory
  x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8
  KVM: x86: handle idiv overflow at kvm_write_tsc
  regmap: Fix handling of volatile registers for format_write() chips
  ACPICA: Update to GPIO region handler interface.
  MIPS: mcount: Adjust stack pointer for static trace in MIPS32
  MIPS: ZBOOT: add missing <linux/string.h> include
  ARM: 8165/1: alignment: don't break misaligned NEON load/store
  ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel
  ARM: 8133/1: use irq_set_affinity with force=false when migrating irqs
  ARM: 8128/1: abort: don't clear the exclusive monitors
  NFSv4: Fix another bug in the close/open_downgrade code
  NFSv4: nfs4_state_manager() vs. nfs_server_remove_lists()
  usb:hub set hub->change_bits when over-current happens
  usb: dwc3: omap: fix ordering for runtime pm calls
  USB: EHCI: unlink QHs even after the controller has stopped
  USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters
  USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter
  USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter
  storage: Add single-LUN quirk for Jaz USB Adapter
  usb: hub: take hub->hdev reference when processing from eventlist
  xhci: fix oops when xhci resumes from hibernate with hw lpm capable devices
  xhci: Fix null pointer dereference if xhci initialization fails
  USB: zte_ev: fix removed PIDs
  USB: ftdi_sio: add support for NOVITUS Bono E thermal printer
  USB: sierra: add 1199:68AA device ID
  USB: sierra: avoid CDC class functions on "68A3" devices
  USB: zte_ev: remove duplicate Qualcom PID
  USB: zte_ev: remove duplicate Gobi PID
  Revert "USB: option,zte_ev: move most ZTE CDMA devices to zte_ev"
  USB: option: add VIA Telecom CDS7 chipset device id
  USB: option: reduce interrupt-urb logging verbosity
  USB: serial: fix potential heap buffer overflow
  USB: sisusb: add device id for Magic Control USB video
  USB: serial: fix potential stack buffer overflow
  USB: serial: pl2303: add device id for ztek device
  xtensa: fix a6 and a7 handling in fast_syscall_xtensa
  xtensa: fix TLBTEMP_BASE_2 region handling in fast_second_level_miss
  xtensa: fix access to THREAD_RA/THREAD_SP/THREAD_DS
  xtensa: fix address checks in dma_{alloc,free}_coherent
  xtensa: replace IOCTL code definitions with constants
  drm/radeon: add connector quirk for fujitsu board
  drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
  drm/ast: AST2000 cannot be detected correctly
  drm/i915: Wait for vblank before enabling the TV encoder
  drm/i915: Remove bogus __init annotation from DMI callbacks
  HID: logitech-dj: prevent false errors to be shown
  HID: magicmouse: sanity check report size in raw_event() callback
  HID: picolcd: sanity check report size in raw_event() callback
  cfq-iosched: Fix wrong children_weight calculation
  ALSA: pcm: fix fifo_size frame calculation
  ALSA: hda - Fix invalid pin powermap without jack detection
  ALSA: hda - Fix COEF setups for ALC1150 codec
  ALSA: core: fix buffer overflow in snd_info_get_line()
  arm64: ptrace: fix compat hardware watchpoint reporting
  trace: Fix epoll hang when we race with new entries
  i2c: at91: Fix a race condition during signal handling in at91_do_twi_xfer.
  i2c: at91: add bound checking on SMBus block length bytes
  arm64: flush TLS registers during exec
  ibmveth: Fix endian issues with rx_no_buffer statistic
  ahci: add pcid for Marvel 0x9182 controller
  ahci: Add Device IDs for Intel 9 Series PCH
  pata_scc: propagate return value of scc_wait_after_reset
  drm/i915: read HEAD register back in init_ring_common() to enforce ordering
  drm/radeon: load the lm63 driver for an lm64 thermal chip.
  drm/ttm: Choose a pool to shrink correctly in ttm_dma_pool_shrink_scan().
  drm/ttm: Fix possible division by 0 in ttm_dma_pool_shrink_scan().
  drm/tilcdc: fix double kfree
  drm/tilcdc: fix release order on exit
  drm/tilcdc: panel: fix leak when unloading the module
  drm/tilcdc: tfp410: fix dangling sysfs connector node
  drm/tilcdc: slave: fix dangling sysfs connector node
  drm/tilcdc: panel: fix dangling sysfs connector node
  carl9170: fix sending URBs with wrong type when using full-speed
  Linux 3.10.55
  libceph: gracefully handle large reply messages from the mon
  libceph: rename ceph_msg::front_max to front_alloc_len
  tpm: Provide a generic means to override the chip returned timeouts
  vfs: fix bad hashing of dentries
  dcache.c: get rid of pointless macros
  IB/srp: Fix deadlock between host removal and multipathd
  blkcg: don't call into policy draining if root_blkg is already gone
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  mtd/ftl: fix the double free of the buffers allocated in build_maps()
  CIFS: Fix wrong restart readdir for SMB1
  CIFS: Fix wrong filename length for SMB2
  CIFS: Fix wrong directory attributes after rename
  CIFS: Possible null ptr deref in SMB2_tcon
  CIFS: Fix async reading on reconnects
  CIFS: Fix STATUS_CANNOT_DELETE error mapping for SMB2
  libceph: do not hard code max auth ticket len
  libceph: add process_one_ticket() helper
  libceph: set last_piece in ceph_msg_data_pages_cursor_init() correctly
  md/raid1,raid10: always abort recover on write error.
  xfs: don't zero partial page cache pages during O_DIRECT writes
  xfs: don't zero partial page cache pages during O_DIRECT writes
  xfs: don't dirty buffers beyond EOF
  xfs: quotacheck leaves dquot buffers without verifiers
  RDMA/iwcm: Use a default listen backlog if needed
  md/raid10: Fix memory leak when raid10 reshape completes.
  md/raid10: fix memory leak when reshaping a RAID10.
  md/raid6: avoid data corruption during recovery of double-degraded RAID6
  Bluetooth: Avoid use of session socket after the session gets freed
  Bluetooth: never linger on process exit
  mnt: Add tests for unprivileged remount cases that have found to be faulty
  mnt: Change the default remount atime from relatime to the existing value
  mnt: Correct permission checks in do_remount
  mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount
  mnt: Only change user settable mount flags in remount
  ring-buffer: Up rb_iter_peek() loop count to 3
  ring-buffer: Always reset iterator to reader page
  ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock
  ACPI: Run fixed event device notifications in process context
  ACPICA: Utilities: Fix memory leak in acpi_ut_copy_iobject_to_iobject
  bfa: Fix undefined bit shift on big-endian architectures with 32-bit DMA address
  ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
  ASoC: max98090: Fix missing free_irq
  ASoC: samsung: Correct I2S DAI suspend/resume ops
  ASoC: wm_adsp: Add missing MODULE_LICENSE
  ASoC: pcm: fix dpcm_path_put in dpcm runtime update
  openrisc: Rework signal handling
  MIPS: Fix accessing to per-cpu data when flushing the cache
  MIPS: OCTEON: make get_system_type() thread-safe
  MIPS: asm: thread_info: Add _TIF_SECCOMP flag
  MIPS: Cleanup flags in syscall flags handlers.
  MIPS: asm/reg.h: Make 32- and 64-bit definitions available at the same time
  MIPS: Remove BUG_ON(!is_fpu_owner()) in do_ade()
  MIPS: tlbex: Fix a missing statement for HUGETLB
  MIPS: Prevent user from setting FCSR cause bits
  MIPS: GIC: Prevent array overrun
  drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
  Drivers: scsi: storvsc: Implement a eh_timed_out handler
  powerpc/pseries: Failure on removing device node
  powerpc/mm: Use read barrier when creating real_pte
  powerpc/mm/numa: Fix break placement
  regulator: arizona-ldo1: remove bypass functionality
  mfd: omap-usb-host: Fix improper mask use.
  kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path
  CAPABILITIES: remove undefined caps from all processes
  tpm: missing tpm_chip_put in tpm_get_random()
  firmware: Do not use WARN_ON(!spin_is_locked())
  spi: omap2-mcspi: Configure hardware when slave driver changes mode
  spi: orion: fix incorrect handling of cell-index DT property
  iommu/amd: Fix cleanup_domain for mass device removal
  media: media-device: Remove duplicated memset() in media_enum_entities()
  media: au0828: Only alt setting logic when needed
  media: xc4000: Fix get_frequency()
  media: xc5000: Fix get_frequency()
  Linux 3.10.54
  USB: fix build error with CONFIG_PM_RUNTIME disabled
  NFSv4: Fix problems with close in the presence of a delegation
  NFSv3: Fix another acl regression
  svcrdma: Select NFSv4.1 backchannel transport based on forward channel
  NFSD: Decrease nfsd_users in nfsd_startup_generic fail
  usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
  USB: whiteheat: Added bounds checking for bulk command response
  USB: ftdi_sio: Added PID for new ekey device
  USB: ftdi_sio: add Basic Micro ATOM Nano USB2Serial PID
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  usb: xhci: amd chipset also needs short TX quirk
  xhci: Treat not finding the event_seg on COMP_STOP the same as COMP_STOP_INVAL
  Staging: speakup: Update __speakup_paste_selection() tty (ab)usage to match vt
  jbd2: fix infinite loop when recovering corrupt journal blocks
  mei: nfc: fix memory leak in error path
  mei: reset client state on queued connect request
  Btrfs: fix csum tree corruption, duplicate and outdated checksums
  hpsa: fix bad -ENOMEM return value in hpsa_big_passthru_ioctl
  x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
  x86_64/vsyscall: Fix warn_bad_vsyscall log output
  x86: don't exclude low BIOS area when allocating address space for non-PCI cards
  drm/radeon: add additional SI pci ids
  ext4: fix BUG_ON in mb_free_blocks()
  kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
  Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
  KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use
  KVM: x86: always exit on EOIs for interrupts listed in the IOAPIC redir table
  KVM: x86: Inter-privilege level ret emulation is not implemeneted
  crypto: ux500 - make interrupt mode plausible
  serial: core: Preserve termios c_cflag for console resume
  ext4: fix ext4_discard_allocated_blocks() if we can't allocate the pa struct
  drivers/i2c/busses: use correct type for dma_map/unmap
  hwmon: (dme1737) Prevent overflow problem when writing large limits
  hwmon: (ads1015) Fix out-of-bounds array access
  hwmon: (lm85) Fix various errors on attribute writes
  hwmon: (ads1015) Fix off-by-one for valid channel index checking
  hwmon: (gpio-fan) Prevent overflow problem when writing large limits
  hwmon: (lm78) Fix overflow problems seen when writing large temperature limits
  hwmon: (sis5595) Prevent overflow problem when writing large limits
  drm: omapdrm: fix compiler errors
  ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case.
  mei: start disconnect request timer consistently
  ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
  ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
  ALSA: virtuoso: add Xonar Essence STX II support
  ALSA: hda - fix an external mic jack problem on a HP machine
  USB: Fix persist resume of some SS USB devices
  USB: ehci-pci: USB host controller support for Intel Quark X1000
  USB: serial: ftdi_sio: Add support for new Xsens devices
  USB: serial: ftdi_sio: Annotate the current Xsens PID assignments
  USB: OHCI: don't lose track of EDs when a controller dies
  isofs: Fix unbounded recursion when processing relocated directories
  HID: fix a couple of off-by-ones
  HID: logitech: perform bounds checking on device_id early enough
  stable_kernel_rules: Add pointer to netdev-FAQ for network patches
  Linux 3.10.53
  arch/sparc/math-emu/math_32.c: drop stray break operator
  sparc64: ldc_connect() should not return EINVAL when handshake is in progress.
  sunsab: Fix detection of BREAK on sunsab serial console
  bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
  sparc64: Guard against flushing openfirmware mappings.
  sparc64: Do not insert non-valid PTEs into the TSB hash table.
  sparc64: Add membar to Niagara2 memcpy code.
  sparc64: Fix huge TSB mapping on pre-UltraSPARC-III cpus.
  sparc64: Don't bark so loudly about 32-bit tasks generating 64-bit fault addresses.
  sparc64: Fix top-level fault handling bugs.
  sparc64: Handle 32-bit tasks properly in compute_effective_address().
  sparc64: Make itc_sync_lock raw
  sparc64: Fix argument sign extension for compat_sys_futex().
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  iovec: make sure the caller actually wants anything in memcpy_fromiovecend
  net: Correctly set segment mac_len in skb_segment().
  macvlan: Initialize vlan_features to turn on offload support.
  net: sctp: inherit auth_capable on INIT collisions
  tcp: Fix integer-overflow in TCP vegas
  tcp: Fix integer-overflows in TCP veno
  net: sendmsg: fix NULL pointer dereference
  ip: make IP identifiers less predictable
  inetpeer: get rid of ip_id_count
  bnx2x: fix crash during TSO tunneling
  Linux 3.10.52
  x86/espfix/xen: Fix allocation of pages for paravirt page tables
  lib/btree.c: fix leak of whole btree nodes
  net/l2tp: don't fall back on UDP [get|set]sockopt
  net: mvneta: replace Tx timer with a real interrupt
  net: mvneta: add missing bit descriptions for interrupt masks and causes
  net: mvneta: do not schedule in mvneta_tx_timeout
  net: mvneta: use per_cpu stats to fix an SMP lock up
  net: mvneta: increase the 64-bit rx/tx stats out of the hot path
  Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan"
  staging: vt6655: Fix Warning on boot handle_irq_event_percpu.
  x86_64/entry/xen: Do not invoke espfix64 on Xen
  x86, espfix: Make it possible to disable 16-bit support
  x86, espfix: Make espfix64 a Kconfig option, fix UML
  x86, espfix: Fix broken header guard
  x86, espfix: Move espfix definitions into a separate header file
  x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
  Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option"
  timer: Fix lock inversion between hrtimer_bases.lock and scheduler locks
  printk: rename printk_sched to printk_deferred
  iio: buffer: Fix demux table creation
  staging: vt6655: Fix disassociated messages every 10 seconds
  mm, thp: do not allow thp faults to avoid cpuset restrictions
  scsi: handle flush errors properly
  rapidio/tsi721_dma: fix failure to obtain transaction descriptor
  cfg80211: fix mic_failure tracing
  ARM: 8115/1: LPAE: reduce damage caused by idmap to virtual memory layout
  crypto: af_alg - properly label AF_ALG socket
  Linux 3.10.51
  core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
  x86/efi: Include a .bss section within the PE/COFF headers
  s390/ptrace: fix PSW mask check
  Fix gcc-4.9.0 miscompilation of load_balance() in scheduler
  mm: hugetlb: fix copy_hugetlb_page_range()
  x86_32, entry: Store badsys error code in %eax
  hwmon: (smsc47m192) Fix temperature limit and vrm write operations
  parisc: Remove SA_RESTORER define
  coredump: fix the setting of PF_DUMPCORE
  Input: fix defuzzing logic
  slab_common: fix the check for duplicate slab names
  slab_common: Do not check for duplicate slab names
  tracing: Fix wraparound problems in "uptime" trace clock
  blkcg: don't call into policy draining if root_blkg is already gone
  ahci: add support for the Promise FastTrak TX8660 SATA HBA (ahci mode)
  libata: introduce ata_host->n_tags to avoid oops on SAS controllers
  libata: support the ata host which implements a queue depth less than 32
  block: don't assume last put of shared tags is for the host
  block: provide compat ioctl for BLKZEROOUT
  media: tda10071: force modulation to QPSK on DVB-S
  media: hdpvr: fix two audio bugs
  Linux 3.10.50
  ARC: Implement ptrace(PTRACE_GET_THREAD_AREA)
  sched: Fix possible divide by zero in avg_atom() calculation
  locking/mutex: Disable optimistic spinning on some architectures
  PM / sleep: Fix request_firmware() error at resume
  dm cache metadata: do not allow the data block size to change
  dm thin metadata: do not allow the data block size to change
  alarmtimer: Fix bug where relative alarm timers were treated as absolute
  drm/radeon: avoid leaking edid data
  drm/qxl: return IRQ_NONE if it was not our irq
  drm/radeon: set default bl level to something reasonable
  irqchip: gic: Fix core ID calculation when topology is read from DT
  irqchip: gic: Add support for cortex a7 compatible string
  ring-buffer: Fix polling on trace_pipe
  mwifiex: fix Tx timeout issue
  perf/x86/intel: ignore CondChgd bit to avoid false NMI handling
  ipv4: fix buffer overflow in ip_options_compile()
  dns_resolver: Null-terminate the right string
  dns_resolver: assure that dns_query() result is null-terminated
  sunvnet: clean up objects created in vnet_new() on vnet_exit()
  net: pppoe: use correct channel MTU when using Multilink PPP
  net: sctp: fix information leaks in ulpevent layer
  tipc: clear 'next'-pointer of message fragments before reassembly
  be2net: set EQ DB clear-intr bit in be_open()
  netlink: Fix handling of error from netlink_dump().
  net: mvneta: Fix big endian issue in mvneta_txq_desc_csum()
  net: mvneta: fix operation in 10 Mbit/s mode
  appletalk: Fix socket referencing in skb
  tcp: fix false undo corner cases
  igmp: fix the problem when mc leave group
  net: qmi_wwan: add two Sierra Wireless/Netgear devices
  net: qmi_wwan: Add ID for Telewell TW-LTE 4G v2
  ipv4: icmp: Fix pMTU handling for rare case
  tcp: Fix divide by zero when pushing during tcp-repair
  bnx2x: fix possible panic under memory stress
  net: fix sparse warning in sk_dst_set()
  ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix
  ipv4: fix dst race in sk_dst_get()
  8021q: fix a potential memory leak
  net: sctp: check proc_dointvec result in proc_sctp_do_auth
  tcp: fix tcp_match_skb_to_sack() for unaligned SACK at end of an skb
  ip_tunnel: fix ip_tunnel_lookup
  shmem: fix splicing from a hole while it's punched
  shmem: fix faulting into a hole, not taking i_mutex
  shmem: fix faulting into a hole while it's punched
  iwlwifi: dvm: don't enable CTS to self
  igb: do a reset on SR-IOV re-init if device is down
  hwmon: (adt7470) Fix writes to temperature limit registers
  hwmon: (da9052) Don't use dash in the name attribute
  hwmon: (da9055) Don't use dash in the name attribute
  tracing: Add ftrace_trace_stack into __trace_puts/__trace_bputs
  tracing: Fix graph tracer with stack tracer on other archs
  fuse: handle large user and group ID
  Bluetooth: Ignore H5 non-link packets in non-active state
  Drivers: hv: util: Fix a bug in the KVP code
  media: gspca_pac7302: Add new usb-id for Genius i-Look 317
  usb: Check if port status is equal to RxDetect

Signed-off-by: Ian Maund <imaund@codeaurora.org>
2015-04-24 18:04:40 -07:00
Johan Hovold 4cd925d7c1 gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low
commit 49d2ca84e433dab854c7a866bc6add09cfab682d upstream.

Fix memory leak in the gpio sysfs interface due to failure to drop
reference to device returned by class_find_device when setting the
gpio-line polarity.

Fixes: 0769746183 ("gpiolib: add support for changing value polarity in sysfs")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-11 14:48:16 +08:00
Johan Hovold d0d1f54d36 gpio: sysfs: fix memory leak in gpiod_export_link
commit 0f303db08df0df9bd0966443ad6001e63960af16 upstream.

Fix memory leak in the gpio sysfs interface due to failure to drop
reference to device returned by class_find_device when creating a link.

Fixes: a4177ee7f1 ("gpiolib: allow exported GPIO nodes to be named using sysfs links")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-11 14:48:16 +08:00
Johan Hovold a9808403cc gpio: sysfs: fix gpio device-attribute leak
commit 0915e6feb38de8d3601819992a5bd050201a56fa upstream.

The gpio device attributes were never destroyed when the gpio was
unexported (or on export failures).

Use device_create_with_groups() to create the default device attributes
of the gpio class device. Note that this also fixes the
attribute-creation race with userspace for these attributes.

Remove contingent attributes in export error path and on unexport.

Fixes: d8f388d8dc ("gpio: sysfs interface")
Cc: stable <stable@vger.kernel.org>	# v2.6.27+
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-29 17:40:55 -08:00
Johan Hovold aa35a48704 gpio: sysfs: fix gpio-chip device-attribute leak
commit 121b6a79955a3a3fd7bbb9b8cb88d5b9dad6283d upstream.

The gpio-chip device attributes were never destroyed when the device was
removed.

Fix by using device_create_with_groups() to create the device attributes
of the chip class device.

Note that this also fixes the attribute-creation race with userspace.

Fixes: d8f388d8dc ("gpio: sysfs interface")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-29 17:40:55 -08:00
Zhangfei Gao b4b0b61c6d gpiolib: remove warnning of allocations with IRQs disabled
Move of_gpiochip_add outof spin_lock, since kzalloc inside
of_gpiochip_add -> of_gpiochip_add_pin_range -> gpiochip_add_pin_range -> kzalloc

WARNING: at kernel/lockdep.c:2740 lockdep_trace_alloc+0xf8/0xfc()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Git-commit: d214ac7202b30062bf3164b61fc466793d359f7b
Git-Repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-06-13 12:06:06 -07:00
Alexandre Courbot c91366e97e gpiolib: safer implementation of desc_to_gpio()
The current implementation of desc_to_gpio() relies on the chip pointer
to be set to a valid value in order to compute the GPIO number. This
was done in the hope that we can get rid of the gpio_desc global array,
but this is not happening anytime soon.

This patch reimplements desc_to_gpio() in a fashion similar to that of
gpio_to_desc(). As a result, desc_to_gpio(gpio_to_desc(gpio)) == gpio is
now always true. This allows to call desc_to_gpio() on non-initialized
descriptors as some error-handling code currently does.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Dr. H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Git-commit: a1eabac6e216f8ecee7668ad4468990e465392ba
Git-Repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
2014-06-13 12:06:04 -07:00
Alexandre Courbot 24d7628fe8 gpiolib: move comment to right function
This comment applies to gpio_to_chip(), not gpiod_to_chip().

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-03-02 13:20:20 +00:00
Alexandre Courbot def634338d gpiolib: use const parameters when possible
Constify descriptor parameter of gpiod_* functions for those that
should obviously not modify it. This includes value or direction get,
cansleep, and IRQ number query.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-03-02 13:20:19 +00:00
Alexandre Courbot bcabdef12d gpiolib: check descriptors validity before use
Some functions dereferenced their GPIO descriptor argument without
checking its validity first, potentially leading to an oops when given
an invalid argument.

This patch also makes gpio_get_value() more resilient when given an
invalid GPIO, returning 0 instead of silently crashing.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-03-02 13:20:19 +00:00
Tejun Heo 62f516b8d6 gpio: convert to idr_alloc()
Convert to the much saner new idr interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:15 -08:00
Linus Torvalds 4c8c225abf GPIO changes for Linux 3.9
This branch contains the usual set of individual driver improvements and
 bug fixes, as well as updates to the core code. The more notable changes
 include:
 
 - Internally add new API for referencing GPIOs by gpio_desc instead of
   number. Eventually this will become a public API
 - ACPI GPIO binding support
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux

Pull GPIO changes from Grant Likely:
 "This branch contains the usual set of individual driver improvements
  and bug fixes, as well as updates to the core code.  The more notable
  changes include:

   - Internally add new API for referencing GPIOs by gpio_desc instead
     of number.  Eventually this will become a public API

   - ACPI GPIO binding support"

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: (33 commits)
  arm64: select ARCH_WANT_OPTIONAL_GPIOLIB
  gpio: em: Use irq_domain_add_simple() to fix runtime error
  gpio: using common order: let 'static const' instead of 'const static'
  gpio/vt8500: memory cleanup missing
  gpiolib: Fix locking on gpio debugfs files
  gpiolib: let gpio_chip reference its descriptors
  gpiolib: use descriptors internally
  gpiolib: use gpio_chips list in gpiochip_find_base
  gpiolib: use gpio_chips list in sysfs ops
  gpiolib: use gpio_chips list in gpiochip_find
  gpiolib: use gpio_chips list in gpiolib_sysfs_init
  gpiolib: link all gpio_chips using a list
  gpio/langwell: cleanup driver
  gpio/langwell: Add Cloverview ids to pci device table
  gpio/lynxpoint: add chipset gpio driver.
  gpiolib: add missing braces in gpio_direction_show
  gpiolib-acpi: Fix error checks in interrupt requesting
  gpio: mpc8xxx: don't set IRQ_TYPE_NONE when creating irq mapping
  gpiolib: remove gpiochip_reserve()
  arm: pxa: tosa: do not use gpiochip_reserve()
  ...
2013-02-26 09:35:29 -08:00
Grant Likely 362432aed5 gpiolib: Fix locking on gpio debugfs files
The debugfs files really need to hold the gpiolib spinlock before
accessing the list. Otherwise chip addition/removal will cause an oops.

Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-11 22:21:28 +00:00
Alexandre Courbot 6c0b4e6c85 gpiolib: let gpio_chip reference its descriptors
Add a pointer to the gpio_chip structure that references the array of
GPIO descriptors belonging to the chip, and update gpiolib code to use
this pointer instead of the global gpio_desc[] array. This is another
step towards the removal of the gpio_desc[] global array.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.orh>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-11 22:21:28 +00:00
Alexandre Courbot 372e722ea4 gpiolib: use descriptors internally
Make sure gpiolib works internally with descriptors and (chip, offset)
pairs instead of using the global integer namespace. This prepares the
ground for the removal of the global gpio_desc[] array and the
introduction of the descriptor-based GPIO API.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
[grant.likely: Squash in fix for link error when CONFIG_SYSFS=n]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-11 22:20:55 +00:00
Alexandre Courbot 83cabe33eb gpiolib: use gpio_chips list in gpiochip_find_base
Re-implement gpiochip_find_base using the list of chips instead of the
global gpio_desc[] array. This makes it both simpler and more efficient,
and is needed to remove the global descriptors array.

The new code should preserve the exact same GPIO number assignment
policy as the code it is replacing. There shouldn't be any visible
change to the assigned GPIO numbers.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
[grant.likely: Added comment about assignment policy]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-09 10:07:10 +00:00
Alexandre Courbot cb1650d4e0 gpiolib: use gpio_chips list in sysfs ops
This makes the code both simpler and faster compared to parsing the GPIO
number space.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-09 09:30:17 +00:00
Alexandre Courbot 125eef96f6 gpiolib: use gpio_chips list in gpiochip_find
Using the GPIO chips list is much faster than parsing the entire GPIO
number space.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-09 09:23:30 +00:00
Alexandre Courbot 65493e3ac4 gpiolib: use gpio_chips list in gpiolib_sysfs_init
Use the small list of GPIO chips instead of parsing the whole GPIO
number space.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-09 09:22:21 +00:00
Alexandre Courbot 1a989d0f1d gpiolib: link all gpio_chips using a list
Add a list member to gpio_chip that allows all chips to be parsed
quickly. The current method requires parsing the entire GPIO integer
space, which is painfully slow. Using a list makes many chip operations
that involve lookup or parsing faster, and also simplifies the code. It
is also necessary to eventually get rid of the global gpio_desc[] array.

The list of gpio_chips is always ordered by base GPIO number to ensure
chips traversal is done in the right order.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-02-09 09:20:12 +00:00
Michał Mirosław 9f3b795a62 driver-core: constify data for class_find_device()
All in-kernel users of class_find_device() don't really need mutable
data for match callback.

In two places (kernel/power/suspend_test.c, drivers/scsi/osd/osd_uld.c)
this patch changes match callbacks to use const search data.

The const is propagated to rtc_class_open() and power_supply_get_by_name()
parameters.

Note that there's a dev reference leak in suspend_test.c that's not
touched in this patch.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-06 12:18:56 -08:00
Alexandre Courbot 476171ce78 gpiolib: add missing braces in gpio_direction_show
Add missing braces in an if..else condition.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-02-04 21:46:56 +01:00
Alexandre Courbot 710b40eac4 gpiolib: remove gpiochip_reserve()
gpiochip_reserve() has no user and stands in the way of the removal of
the static gpio_desc[] array. Remove this function as well as the now
unneeded RESERVED flag of struct gpio_desc.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-02-04 21:41:46 +01:00
Linus Torvalds b0885d01f9 GPIO follow up patch and type change for v3.5 merge window
Primarily device driver additions, features and bug fixes. Not much
 touching gpio common subsystem support. Should not be scary.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull GPIO updates from Grant Likely:
 "GPIO follow up patch and type change for v3.5 merge window

  Primarily device driver additions, features and bug fixes.  Not much
  touching gpio common subsystem support.  Should not be scary."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits)
  gpio: Provide the STMPE GPIO driver with its own IRQ Domain
  gpio: add TS-5500 DIO blocks support
  gpio: pcf857x: use client->irq for gpio_to_irq()
  gpio: stmpe: Add DT support for stmpe gpio
  gpio: pl061 depends on ARM
  gpio/pl061: remove old comment
  gpio: SPEAr: add spi chipselect control driver
  gpio: gpio-max710x: Support device tree probing
  gpio: twl4030: Use only TWL4030_MODULE_LED for LED configuration
  gpio: tegra: read output value when gpio is set in direction_out
  gpio: pca953x: Add compatible strings to gpio-pca953x driver
  gpio: pca953x: Register an IRQ domain
  gpio: mvebu: Set free callback for gpio_chip
  gpio: tegra: Drop exporting static functions
  gpio: tegra: Staticize non-exported symbols
  gpio: tegra: fix suspend/resume apis
  gpio-pch: Set parent dev for gpio chip
  gpio: em: Fix build errors
  GPIO: clps711x: use platform_device_unregister in gpio_clps711x_init()
  gpio/tc3589x: convert to use the simple irqdomain
  ...
2012-12-11 13:00:56 -08:00
Axel Lin b4d4b1f087 gpiolib: Fix use after free in gpiochip_add_pin_range
This is introduced by commit 9ab6e988
"gpiolib: return any error code from range creation".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-21 10:08:05 +01:00
Linus Walleij 316511c013 gpiolib: rename pin range arguments
To be crystal clear on what the arguments mean in this
funtion dealing with both GPIO and PIN ranges with confusing
naming, we now have gpio_offset and pin_offset and we are
on the clear that these are offsets into the specific GPIO
and pin controller respectively. The GPIO chip itself will
of course keep track of the base offset into the global
GPIO number space.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-21 10:07:48 +01:00
Linus Walleij 8f23ca1a73 gpiolib: return any error code from range creation
If we try to create a range for a certain GPIO chip and the
target pin controller is not yet available it may return
a probe deferral error code, so handle this all the way
our by checking the error code.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-21 08:55:11 +01:00
Linus Walleij 192c369c61 gpiolib: rename find_pinctrl_*
Rename the function find_pinctrl_and_add_gpio_range()
to pinctrl_find_and_add_gpio_range() so as to be consistent
with the rest of the functions.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-21 08:55:10 +01:00
Linus Walleij 3f0f867060 gpiolib: let gpiochip_add_pin_range() specify offset
Like with commit 3c739ad0df
it is not always enough to specify all the pins of a gpio_chip
from offset zero to be added to a pin map range, since the
mapping from GPIO to pin controller may not be linear at all,
but need to be broken into a few consecutive sub-ranges or
1-pin entries for complicated cases. The ranges may also be
sparse.

This alters the signature of the function to accept offsets
into both the GPIO-chip local pinspace and the pin controller
local pinspace.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-21 08:55:03 +01:00
Linus Walleij 1e63d7b936 gpiolib: separation of pin concerns
The fact that of_gpiochip_add_pin_range() and
gpiochip_add_pin_range() share too much code is fragile and
will invariably mean that bugs need to be fixed in two places
instead of one.

So separate the concerns of gpiolib.c and gpiolib-of.c and
have the latter call the former as back-end. This is necessary
also when going forward with other device descriptions such
as ACPI.

This is done by:

- Adding a return code to gpiochip_add_pin_range() so we can
  reliably check whether this succeeds.

- Get rid of the custom of_pinctrl_add_gpio_range() from
  pinctrl. Instead create of_pinctrl_get() to just retrive the
  pin controller per se from an OF node. This composite
  function was just begging to be deleted, it was way to
  purpose-specific.

- Use pinctrl_dev_get_name() to get the name of the retrieved
  pin controller and use that to call back into the generic
  gpiochip_add_pin_range().

Now the pin range is only allocated and tied to a pin
controller from the core implementation in gpiolib.c.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:06:07 +01:00
Linus Walleij 9ef0d6f762 gpiolib: call pin removal in chip removal function
This makes us call gpiochio_remove_pin_ranges() in the
gpiochip_remove() function, so we get rid of ranges when
freeing the chip.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:06:06 +01:00
Linus Walleij 165adc9c17 gpiolib: fix up function prototypes etc
Commit 69e1601bca88809dc118abd1becb02c15a02ec71
"gpiolib: provide provision to register pin ranges"

Got most of it's function prototypes wrong, so fix this up by:

- Moving the void declarations into static inlines in
  <linux/gpio.h> (previously the actual prototypes were declared
  here...)

- Declare the gpiochip_add_pin_range() and
  gpiochip_remove_pin_ranges() functions in <asm-generic/gpio.h>
  together with the pin range struct declaration itself.

- Actually only implement these very functions in gpiolib.c
  if CONFIG_PINCTRL is set.

- Additionally export the symbols since modules will need to
  be able to do this.

Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:06:04 +01:00
Shiraz Hashim f23f1516b6 gpiolib: provide provision to register pin ranges
pinctrl subsystem needs gpio chip base to prepare set of gpio
pin ranges, which a given pinctrl driver can handle. This is
important to handle pinctrl gpio request calls in order to
program a given pin properly for gpio operation.

As gpio base is allocated dynamically during gpiochip
registration, presently there exists no clean way to pass this
information to the pinctrl subsystem.

After few discussions from [1], it was concluded that may be
gpio controller reporting the pin range it supports, is a
better way than pinctrl subsystem directly registering it.

[1] http://comments.gmane.org/gmane.linux.ports.arm.kernel/184816

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
[Edited documentation a bit]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:06:00 +01:00
Dan Carpenter 529f2ad5e3 gpiolib: unlock on error in gpio_export()
We need to unlock here before returning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-26 09:35:17 +02:00
Mathias Nyman ad2fab36d7 gpiolib: Don't return -EPROBE_DEFER to sysfs, or for invalid gpios
gpios requested with invalid numbers, or gpios requested from userspace via sysfs
should not try to be deferred on failure.

Cc: stable@kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-26 09:25:10 +02:00
Mathias Nyman 80b0a60292 gpiolib: add gpio get direction callback support
Add .get_direction callback to gpio_chip. This allows gpiolib
to check the current direction of a gpio.
Used to show the correct gpio direction in sysfs and debug entries.

If callback is not set then gpiolib will work as previously;
e.g. guessing everything is input until a direction is set.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-26 09:18:55 +02:00
Ryan Mallon fc4e251499 gpiolib: Refactor gpio_export
The gpio_export function uses nested if statements and the status
variable to handle the failure cases. This makes the function logic
difficult to follow. Refactor the code to abort immediately on failure
using goto. This makes the code slightly longer, but significantly
reduces the nesting and number of split lines and makes the code easier
to read.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-23 00:13:36 +02:00
Thierry Reding f9c4a31f61 gpiolib: Use seq_file's iterator interface
When dumping a collection of items via seq_file, it is recommended to
use the iterator interface. For the gpiolib debugfs interface this can
be done to dump each GPIO chip in turn.

Note that for gpiolib this is a little cumbersome because it does not
provide a list of registered GPIO chips and the only way to iterate is
over each GPIO individually. Once a chip is found, the number of GPIOs
it provides can be skipped as a small optimization.

This patch was requested by Arnd Bergmann here:

	http://article.gmane.org/gmane.linux.ports.tegra/3535

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-08-17 07:35:41 +02:00
Mark Brown e935457630 gpiolib: Defer failed gpio requests by default
Since users must be explicitly provided with a GPIO number in order to
request one the overwhelmingly common case for failing to request will
be that the required GPIO driver has not yet registered and we should
therefore defer until it has registered.

In order to avoid having to code this logic in individual drivers have
gpio_request() return -EPROBE_DEFER when failing to look up the GPIO.
Drivers which don't want this behaviour can override it if they desire.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-17 21:00:20 +02:00
Grant Likely 07ce8ec730 gpiolib: Remove 'const' from data argument of gpiochip_find()
Commit 3d0f7cf0 "gpio: Adjust of_xlate API to support multiple GPIO
chips" changed the api of gpiochip_find to drop const from the data
parameter of the match hook, but didn't also drop const from data
causing a build warning.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-18 23:01:05 -06:00
H Hartley Sweeten ee1c1e7d64 gpiolib: quiet gpiochip_add boot message noise
The pr_info message in gpiochip_add gets displayed for every
gpiochip registered. When first bringing up a system this
information could be helpful but for normal use it's just a
bunch of noise. Change the message to a pr_debug.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-18 22:12:50 -06:00