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
..
chips	[MTD] [NOR] fix startup lock when using multiple nor flash chips	2008-02-07 10:38:12 +00:00
devices	mtd: memory corruption in block2mtd.c	2008-03-24 19:22:19 -07:00
maps	mtd: maps/physmap: fix oops in suspend/resume/shutdown ops	2008-03-28 14:45:22 -07:00
nand	mtd: nand: add out label in rfc_from4	2008-03-28 14:45:21 -07:00
onenand	[MTD] onenand: Add panic_write function to the onenand driver	2008-02-07 10:31:23 +00:00
ubi	UBI: mtd/ubi/vtbl.c: fix memory leak	2008-03-04 11:03:09 +02:00
afs.c
cmdlinepart.c	[MTD] Unlocking all Intel flash that is locked on power up.	2008-02-03 18:25:16 +11:00
ftl.c
inftlcore.c
inftlmount.c
Kconfig	[MTD] Factor out OF partition support from the NOR driver.	2008-02-03 18:06:48 +11:00
Makefile	[MTD] Factor out OF partition support from the NOR driver.	2008-02-03 18:06:48 +11:00
mtd_blkdevs.c	[MTD] Always initialise mutex in new mtd_blktrans_dev.	2007-12-03 12:46:12 +00:00
mtdblock_ro.c
mtdblock.c
mtdchar.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git	2008-02-03 18:30:32 +11:00
mtdconcat.c	[MTD] fix mtdconcat for subpage-write NAND	2007-10-14 13:38:02 +01:00
mtdcore.c	[MTD] Unlocking all Intel flash that is locked on power up.	2008-02-03 18:25:16 +11:00
mtdcore.h
mtdoops.c	[MTD] Fix mtdoops.c compilation	2008-02-07 10:50:57 +00:00
mtdpart.c	[MTD] Add mtd panic_write function pointer	2008-02-07 10:30:48 +00:00
mtdsuper.c	Introduce path_put()	2008-02-14 21:13:33 -08:00
nftlcore.c
nftlmount.c	Spelling fixes: lenght->length	2008-02-03 15:42:53 +02:00
ofpart.c	[MTD] Factor out OF partition support from the NOR driver.	2008-02-03 18:06:48 +11:00
redboot.c	[MTD] Skip bad blocks when checking for RedBoot partition table	2007-10-28 21:57:02 -04:00
rfd_ftl.c
ssfdc.c