linux

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Alexey Dobriyan c43f89c208 fbdev: fix /proc/fb oops after module removal /proc/fb is not removed during rmmod. Steps to reproduce: modprobe fb rmmod fb ls /proc BUG: unable to handle kernel paging request at ffffffffa0094370 IP: [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 PGD 203067 PUD 207063 PMD 17e758067 PTE 0 Oops: 0000 [1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:02.0/resource CPU 1 Modules linked in: nf_conntrack_irc xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables x_tables vfat fat usbhid ehci_hcd uhci_hcd usbcore sr_mod cdrom [last unloaded: fb] Pid: 21205, comm: ls Not tainted 2.6.25-rc8-mm2 #14 RIP: 0010:[<ffffffff802b92a1>] [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 RSP: 0018:ffff81017c4bfc78 EFLAGS: 00010246 RAX: 0000000000008000 RBX: ffff8101787f5470 RCX: 0000000048011ccc RDX: ffffffffa0094320 RSI: ffff810006ad43b0 RDI: ffff81017fc2cc00 RBP: ffff81017e450300 R08: 0000000000000002 R09: ffff81017c5d1000 R10: 0000000000000000 R11: 0000000000000246 R12: ffff81016b903a28 R13: ffff81017f822020 R14: ffff81017c4bfd58 R15: ffff81017f822020 FS: 00007f08e71696f0(0000) GS:ffff81017fc06480(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffffffa0094370 CR3: 000000017e54a000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process ls (pid: 21205, threadinfo ffff81017c4be000, task ffff81017de48770) Stack: ffff81017c5d1000 00000000ffffffea ffff81017e450300 ffffffff802bdd1e ffff81017f802258 ffff81017c4bfe48 ffff81016b903a28 ffff81017f822020 ffff81017c4bfd48 ffffffff802b9ba0 ffff81016b903a28 ffff81017f802258 Call Trace: [<ffffffff802bdd1e>] ? proc_lookup_de+0x8e/0x100 [<ffffffff802b9ba0>] ? proc_root_lookup+0x20/0x60 [<ffffffff802882a7>] ? do_lookup+0x1b7/0x210 [<ffffffff8028883d>] ? __link_path_walk+0x53d/0x7f0 [<ffffffff80295eb8>] ? mntput_no_expire+0x28/0x130 [<ffffffff80288b4a>] ? path_walk+0x5a/0xc0 [<ffffffff80288dd3>] ? do_path_lookup+0x83/0x1c0 [<ffffffff80287785>] ? getname+0xe5/0x210 [<ffffffff80289adb>] ? __user_walk_fd+0x4b/0x80 [<ffffffff8028236c>] ? vfs_lstat_fd+0x2c/0x70 [<ffffffff8028bf1e>] ? filldir+0xae/0xf0 [<ffffffff802b92e9>] ? de_put+0x9/0x50 [<ffffffff8029633d>] ? mnt_want_write+0x2d/0x80 [<ffffffff8029339f>] ? touch_atime+0x1f/0x170 [<ffffffff802b9b1d>] ? proc_root_readdir+0x7d/0xa0 [<ffffffff802825e7>] ? sys_newlstat+0x27/0x50 [<ffffffff8028bffb>] ? vfs_readdir+0x9b/0xd0 [<ffffffff8028c0fe>] ? sys_getdents+0xce/0xe0 [<ffffffff8020b39b>] ? system_call_after_swapgs+0x7b/0x80 Code: b7 83 b2 00 00 00 25 00 f0 00 00 3d 00 80 00 00 74 19 48 89 93 f0 00 00 00 48 89 df e8 39 9a fd ff 48 89 d8 48 83 c4 08 5b 5d c3 <48> 83 7a 50 00 48 c7 c0 60 16 45 80 48 c7 c2 40 17 45 80 48 0f RIP [<ffffffff802b92a1>] proc_get_inode+0x101/0x130 RSP <ffff81017c4bfc78> CR2: ffffffffa0094370 ---[ end trace c71hiarjan8ab739 ]--- Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> "Antonino A. Daplas" <adaplas@pol.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-04-15 19:35:40 -07:00
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aty	[ATYFB]: Kill 'prom_palette' sparc code.	2008-02-18 15:26:43 -08:00
backlight	backlight: Add OMAP1 PWL backlight driver	2008-02-07 09:31:52 +00:00
console	mn10300: add the MN10300/AM33 architecture to the kernel	2008-02-08 09:22:30 -08:00
display	…
geode	make video/geode/lxfb_core.c:geode_modedb[] static	2008-02-06 10:41:15 -08:00
i810	i810fb: fix console switch regression	2008-03-19 18:53:36 -07:00
intelfb	Remove pointless casts from void pointers	2008-02-06 10:41:01 -08:00
kyro	…
logo	…
matrox	…
mbx	mbxfb: fix incorrect argument type	2008-03-10 18:01:20 -07:00
nvidia	PM: Introduce PM_EVENT_HIBERNATE callback state	2008-02-23 10:40:04 -08:00
omap	…
pnx4008	…
riva	…
savage	…
sis	drivers/video: remove unnecessary pci_dev_put	2008-02-06 10:41:15 -08:00
vermilion	vermilion.c: use ALIGN(), not __ALIGN_MASK()	2008-02-06 10:41:16 -08:00
68328fb.c	…
Kconfig	fbdev: defio and Metronomefb	2008-03-19 18:53:37 -07:00
Makefile	fbdev: defio and Metronomefb	2008-03-19 18:53:37 -07:00
acornfb.c	…
acornfb.h	…
amba-clcd.c	…
amifb.c	…
arcfb.c	…
arkfb.c	…
asiliantfb.c	…
atafb.c	…
atafb.h	…
atafb_iplan2p2.c	…
atafb_iplan2p4.c	…
atafb_iplan2p8.c	…
atafb_mfb.c	…
atafb_utils.h	…
atmel_lcdfb.c	atmel_lcdfb: backlight control	2008-02-06 10:41:16 -08:00
au1100fb.c	…
au1100fb.h	…
au1200fb.c	…
au1200fb.h	…
bf54x-lq043fb.c	blackfin video driver: fix bug when opening/reading/mmaping BF54x and BF52x framebuffer simultaneously	2008-03-28 14:45:22 -07:00
bfin-t350mcqb-fb.c	blackfin video driver: fix bug when opening/reading/mmaping BF54x and BF52x framebuffer simultaneously	2008-03-28 14:45:22 -07:00
bt431.h	…
bt455.h	…
bw2.c	…
c2p.c	…
c2p.h	…
cfbcopyarea.c	…
cfbfillrect.c	…
cfbimgblt.c	…
cg3.c	…
cg6.c	…
cg14.c	[SPARC]: video/cg14.c and video/sbuslib.c build fixes	2008-02-12 18:23:31 -08:00
chipsfb.c	PM: Introduce PM_EVENT_HIBERNATE callback state	2008-02-23 10:40:04 -08:00
cirrusfb.c	…
clps711xfb.c	…
controlfb.c	…
controlfb.h	…
cyber2000fb.c	…
cyber2000fb.h	…
cyblafb.c	…
dnfb.c	…
edid.h	…
efifb.c	…
epson1355fb.c	…
fb_ddc.c	…
fb_defio.c	fbdev: defio and Metronomefb	2008-03-19 18:53:37 -07:00
fb_draw.h	fb: fix warning: no return statement in function returning non-void	2008-02-06 10:41:21 -08:00
fb_notify.c	…
fb_sys_fops.c	…
fbcmap.c	…
fbcvt.c	…
fbmem.c	fbdev: fix /proc/fb oops after module removal	2008-04-15 19:35:40 -07:00
fbmon.c	fbmon: cleanup trailing whitespaces	2008-02-06 10:41:15 -08:00
fbsysfs.c	…
ffb.c	…
fm2fb.c	…
g364fb.c	…
gbefb.c	…
gxt4500.c	…
hecubafb.c	…
hgafb.c	…
hitfb.c	fb: hitfb: Balance probe/remove section annotations.	2008-03-06 13:56:33 +09:00
hpfb.c	video/hpfb.c section fix	2008-02-06 10:41:15 -08:00
igafb.c	drivers/video: add missing pci_dev_get	2008-02-06 10:41:16 -08:00
imacfb.c	…
imsttfb.c	…
imxfb.c	…
imxfb.h	…
leo.c	…
macfb.c	…
macmodes.c	…
macmodes.h	…
maxinefb.c	…
metronomefb.c	fbdev: defio and Metronomefb	2008-03-19 18:53:37 -07:00
modedb.c	…
neofb.c	neofb: avoid overwriting fb_info fields	2008-02-06 10:41:16 -08:00
offb.c	…
output.c	…
p9100.c	…
platinumfb.c	…
platinumfb.h	…
pm2fb.c	pm2fb: big endian fix	2008-02-06 10:41:17 -08:00
pm3fb.c	drivers/video/pm3fb.c section fix	2008-02-06 10:41:16 -08:00
pmag-aa-fb.c	fbcon: fix color generation for monochrome framebuffer	2008-02-06 10:41:18 -08:00
pmag-ba-fb.c	…
pmagb-b-fb.c	…
ps3fb.c	ps3fb: fix modedb typos	2008-02-06 10:41:17 -08:00
pvr2fb.c	fb: pvr2fb: Fix up remaining section mismatch.	2008-03-06 13:39:18 +09:00
pxafb.c	[ARM] 4828/1: fix 3 warnings in drivers/video/pxafb.c	2008-02-17 10:42:09 +00:00
pxafb.h	…
q40fb.c	…
s1d13xxxfb.c	…
s3c2410fb.c	FB/S3C2410: check default_display parameter passed in platform data	2008-02-06 10:41:18 -08:00
s3c2410fb.h	FB/S3C2412: add S3C2412 support to S3C2410 fb driver	2008-02-06 10:41:17 -08:00
s3fb.c	…
sa1100fb.c	…
sa1100fb.h	…
sbuslib.c	[SPARC]: video/cg14.c and video/sbuslib.c build fixes	2008-02-12 18:23:31 -08:00
sbuslib.h	…
sgivwfb.c	…
skeletonfb.c	…
sm501fb.c	sm501fb: fix timing limits	2008-03-04 16:35:13 -08:00
sstfb.c	…
sticore.h	…
stifb.c	stifb: fix crash A1439A CRX (Rattler) graphics card	2008-03-10 18:01:20 -07:00
sunxvr500.c	…
sunxvr2500.c	…
svgalib.c	…
syscopyarea.c	…
sysfillrect.c	…
sysimgblt.c	…
tcx.c	…
tdfxfb.c	tdfxfb: fix section mismatch warnings	2008-02-06 10:41:16 -08:00
tgafb.c	…
tridentfb.c	tridentfb: fix memory size detection	2008-03-10 18:01:18 -07:00
uvesafb.c	drivers/video/uvesafb.c: fix section mismatch warning in param_set_scroll()	2008-02-23 17:12:15 -08:00
valkyriefb.c	…
valkyriefb.h	…
vesafb.c	…
vfb.c	…
vga16fb.c	…
vgastate.c	…
vt8623fb.c	…
w100fb.c	…
w100fb.h	…
xilinxfb.c	[POWERPC] Xilinx: Update compatible to use values generated by BSP generator.	2008-02-06 10:23:21 -07:00