Anton Vorontsov 4a5691c0f7 mtd: maps/physmap: fix oops in suspend/resume/shutdown ops ... # reboot ... [ 42.351266] Flash device refused suspend due to active operation (state 0) [ 42.358195] Unable to handle kernel NULL pointer dereference at virtual address 00000078 [ 42.360060] pgd = c7d9c000 [ 42.362769] [00000078] *pgd=a7d8d031, *pte=00000000, *ppte=00000000 [ 42.372902] Internal error: Oops: 17 [#1] [ 42.376911] Modules linked in: [ 42.379980] CPU: 0 Not tainted (2.6.25-rc2-10642-ge8f2594-dirty #73) [ 42.380000] PC is at physmap_flash_shutdown+0x28/0x54 ... [ 42.380000] Backtrace: [ 42.380000] [<c0130c1c>] (physmap_flash_shutdown+0x0/0x54) from [<c01207c0>] (platform_drv_shutdown+0x20/0x24) [ 42.380000] r5:28121969 r4:c0229e08 [ 42.380000] [<c01207a0>] (platform_drv_shutdown+0x0/0x24) from [<c011cd40>] (device_shutdown+0x60/0x88) [ 42.380000] [<c011cce0>] (device_shutdown+0x0/0x88) from [<c003e8a4>] (kernel_restart_prepare+0x2c/0x3c) [ 42.380000] r4:00000000 [ 42.380000] [<c003e878>] (kernel_restart_prepare+0x0/0x3c) from [<c003ea00>] (kernel_restart+0x14/0x48) [ 42.380000] [<c003e9ec>] (kernel_restart+0x0/0x48) from [<c003fdc0>] (sys_reboot+0xe8/0x1f8) [ 42.380000] r4:01234567 [ 42.380000] [<c003fcd8>] (sys_reboot+0x0/0x1f8) from [<c001aa00>] (ret_fast_syscall+0x0/0x2c) [ 42.380000] r7:00000058 r6:00000004 r5:00000001 r4:00000000 [ 42.380000] Code: 0a000009 e7953004 e1a00003 e1a0e00f (e593f078) [ 42.650051] ---[ end trace 6d6c26a0fc3141de ]--- Segmentation fault INIT: no more processes left in this runlevel While looping for mtd[i]s, we should stop at the mtd[i] == NULL. This patch also removes unnecessary "if (info)" checks: suspend/resume/shutdown ops are executed only if probe() is succeeded, so info is guaranteed to be !NULL. Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: David Brownell <david-b@pacbell.net> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-03-28 14:45:22 -07:00
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alchemy-flash.c
amd76xrom.c
autcpu12-nvram.c
bast-flash.c
cdb89712.c
ceiva.c
cfi_flagadm.c
ck804xrom.c
dbox2-flash.c
dc21285.c
dilnetpc.c
dmv182.c
ebony.c
edb7312.c
esb2rom.c
fortunet.c
h720x-flash.c
ichxrom.c
impa7.c
integrator-flash.c
intel_vr_nor.c
ipaq-flash.c
ixp4xx.c
ixp2000.c
Kconfig
l440gx.c
Makefile
map_funcs.c
mbx860.c
mpc1211.c
mtx-1_flash.c
netsc520.c
nettel.c
ocotea.c
octagon-5066.c
omap-toto-flash.c
omap_nor.c
pci.c
pcmciamtd.c
physmap.c
physmap_of.c
plat-ram.c
pmcmsp-flash.c
pmcmsp-ramroot.c
pxa2xx-flash.c
redwood.c
rpxlite.c
sa1100-flash.c
sbc8240.c
sbc_gxx.c
sc520cdp.c
scb2_flash.c
scx200_docflash.c
sharpsl-flash.c
solutionengine.c
sun_uflash.c
tqm8xxl.c
ts5500_flash.c
tsunami_flash.c
uclinux.c
vmax301.c
walnut.c
wr_sbc82xx_flash.c