Mikulas Patocka 73cee5a80c cpufreq: speedstep-smi: enable interrupts when waiting ... commit d4d4eda23794c701442e55129dd4f8f2fefd5e4d upstream. On Dell Latitude C600 laptop with Pentium 3 850MHz processor, the speedstep-smi driver sometimes loads and sometimes doesn't load with "change to state X failed" message. The hardware sometimes refuses to change frequency and in this case, we need to retry later. I found out that we need to enable interrupts while waiting. When we enable interrupts, the hardware blockage that prevents frequency transition resolves and the transition is possible. With disabled interrupts, the blockage doesn't resolve (no matter how long do we wait). The exact reasons for this hardware behavior are unknown. This patch enables interrupts in the function speedstep_set_state that can be called with disabled interrupts. However, this function is called with disabled interrupts only from speedstep_get_freqs, so it shouldn't cause any problem. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Zefan Li <lizefan@huawei.com>		2015-06-19 11:40:15 +08:00
..
accessibility
acpi	ACPI / cpuidle: fix deadlock between cpuidle_lock and cpu_hotplug.lock	2014-12-01 18:02:22 +08:00
amba
ata	libata: prevent HSM state change race between ISR and PIO	2015-04-14 17:33:54 +08:00
atm	skb: Add inline helper for getting the skb end offset from head	2014-06-07 16:02:00 -07:00
auxdisplay
base	driver core: Introduce device_create_groups	2015-04-14 17:33:53 +08:00
bcma
block	drbd: merge_bvec_fn: properly remap bvm->bi_bdev	2015-04-14 17:33:41 +08:00
bluetooth	Bluetooth: ath3k: Add support of AR3012 bluetooth 13d3:3423 device	2015-06-19 11:40:11 +08:00
cdrom	drivers/cdrom/cdrom.c: use kzalloc() for failing hardware	2013-07-13 11:03:40 -07:00
char	random: add and use memzero_explicit() for clearing data	2015-02-02 17:04:54 +08:00
clk	clk: remove notifier from list before freeing it	2013-06-27 11:27:30 -07:00
clocksource
connector	proc connector: reject unprivileged listener bumps	2014-03-11 16:10:03 -07:00
cpufreq	cpufreq: speedstep-smi: enable interrupts when waiting	2015-06-19 11:40:15 +08:00
cpuidle
crypto	crypto: caam - add allocation failure handling in SPRINTFCAT macro	2014-06-07 16:02:03 -07:00
dca
devfreq
dio
dma	dma: ste_dma40: don't dereference free:d descriptor	2014-03-11 16:10:02 -07:00
edac	mpc85xx_edac: Make L2 interrupt shared too	2015-02-02 17:04:46 +08:00
eisa
firewire	firewire: cdev: prevent kernel stack leaking into ioctl arguments	2015-02-02 17:05:24 +08:00
firmware	x86, efivars: firmware bug workarounds should be in platform code	2014-06-07 16:02:10 -07:00
gpio	gpio: sysfs: fix memory leak in gpiod_sysfs_set_active_low	2015-04-14 17:33:59 +08:00
gpu	drm/i915: Only fence tiled region of object.	2015-04-14 17:33:56 +08:00
hid	HID: roccat: potential out of bounds in pyra_sysfs_write_settings()	2015-04-14 17:33:52 +08:00
hsi
hv	Drivers: hv: vmbus: incorrect device name is printed when child device is unregistered	2015-04-14 17:34:00 +08:00
hwmon	hwmon: (adm1029) Ensure the fan_div cache is updated in set_fan_div	2014-07-17 15:39:50 -07:00
hwspinlock
i2c	i2c: davinci: generate STP always when NACK is received	2015-04-14 17:33:40 +08:00
ide
idle	intel_idle: Don't register CPU notifier if we are not running.	2014-06-07 16:02:07 -07:00
ieee802154
infiniband	srp-target: Retry when QP creation fails with ENOMEM	2015-02-02 17:05:20 +08:00
input	Input: I8042 - add Acer Aspire 7738 to the nomux list	2015-04-14 17:33:51 +08:00
iommu	iommu/vt-d: Fix an off-by-one bug in __domain_mapping()	2015-04-14 17:33:44 +08:00
isdn	isdnloop: several buffer overflows	2014-04-26 17:13:18 -07:00
leds	drivers/leds/leds-ot200.c: fix error caused by shifted mask	2013-06-07 12:49:13 -07:00
lguest
macintosh
mca
md	dm raid: ensure superblock's size matches device's logical block size	2015-02-02 17:05:17 +08:00
media	media: media-device: fix infoleak in ioctl media_enum_entities()	2014-06-07 16:02:02 -07:00
memstick
message
mfd	mfd: tc6393xb: Fail ohci suspend if full state restore is required	2015-04-14 17:33:43 +08:00
misc	MISC: hpilo, remove pci_disable_device	2014-06-07 16:02:06 -07:00
mmc	mmc: mxs-mmc: fix deadlock caused by recursion loop	2014-04-14 06:44:32 -07:00
mtd	UBI: Fix invalid vfree()	2015-04-14 17:33:41 +08:00
net	ath5k: fix spontaneus AR5312 freezes	2015-06-19 11:40:14 +08:00
nfc
nubus
of	of/base: Fix PowerPC address parsing hack	2015-02-02 17:05:22 +08:00
oprofile
parisc
parport	parport: parport_pc: remove double PCI ID for NetMos	2014-02-06 11:05:47 -08:00
pci	PCI: Fix infinite loop with ROM image of size 0	2015-06-19 11:40:12 +08:00
pcmcia	pcmcia: at91_cf: fix gpio_get_value in at91_cf_get_status	2013-07-21 18:19:01 -07:00
pinctrl
platform	hp_accel: Add support for HP ZBook 15	2015-04-14 17:33:44 +08:00
pnp
power	power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge	2015-02-02 17:04:43 +08:00
pps	pps: Fix a use-after free bug when unregistering a source.	2014-04-14 06:44:17 -07:00
ps3
ptp
rapidio	rapidio/tsi721: Fix interrupt mask when handling MSI	2014-06-07 16:02:14 -07:00
regulator	regulator: core: fix race condition in regulator_put()	2015-04-14 17:33:55 +08:00
remoteproc
rpmsg
rtc	drivers/rtc/rtc-pl031.c: restore ST variant functionality	2014-06-07 16:02:14 -07:00
s390	s390/3215: fix tty output containing tabs	2015-04-14 17:34:03 +08:00
sbus	bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000	2014-08-14 08:42:37 +08:00
scsi	usb-storage/SCSI: Add broken_fua blacklist flag	2015-04-14 17:33:56 +08:00
sfi
sh
sn
spi	spi: dw: revisit FIFO size detection again	2015-04-14 17:34:04 +08:00
ssb
staging	staging: comedi: comedi_compat32.c: fix COMEDI_CMD copy back	2015-06-19 11:40:12 +08:00
target	iscsi-target: Fail connection on short sendmsg writes	2015-04-14 17:33:47 +08:00
tc
thermal
tty	tty: Prevent untrappable signals from malicious program	2015-06-19 11:40:14 +08:00
uio	Fix a few incorrectly checked [io_]remap_pfn_range() calls	2013-11-29 10:50:32 -08:00
usb	USB: fix use-after-free bug in usb_hcd_unlink_urb()	2015-06-19 11:40:13 +08:00
uwb	uwb: init beacon cache entry before registering uwb device	2014-12-01 18:02:28 +08:00
vhost	vhost: validate vhost_get_vq_desc return value	2014-04-26 17:13:17 -07:00
video	video/logo: prevent use of logos after they have been freed	2015-04-14 17:33:49 +08:00
virt
virtio	virtio_pci: document why we defer kfree	2015-04-14 17:33:50 +08:00
vlynq
w1	w1: fix w1_send_slave dropping a slave id	2014-05-06 07:51:41 -07:00
watchdog	watchdog: sp805: Set watchdog_device->timeout from ->set_timeout()	2014-07-06 18:49:19 -07:00
xen	xen/manage: Always freeze/thaw processes when suspend/resuming	2014-12-01 18:02:25 +08:00
zorro
Kconfig
Makefile