Guy Martin e65f8c4e3e V4L/DVB: stv6110x: Fix kernel null pointer deref ... The following OOPS happened when plugging two TT s2-1600: [ 96.521023] saa7146: register extension 'budget dvb'. [ 96.521052] budget dvb 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 96.521070] IRQ 16/: IRQF_DISABLED is not guaranteed on shared IRQs [ 96.521076] saa7146: found saa7146 @ mem ffffc90011182c00 (revision 1, irq 16) (0x13c2,0x101c). [ 96.521080] saa7146 (0): dma buffer size 192512 [ 96.521081] DVB: registering new adapter (TT-Budget S2-1600 PCI) [ 96.539929] adapter has MAC addr = 00:d0:5c:cc:b0:a2 [ 96.890149] stv6110x_attach: Attaching STV6110x [ 96.912516] DVB: registering adapter 0 frontend 0 (STV090x Multistandard)... [ 96.912600] budget dvb 0000:05:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 96.912639] IRQ 17/: IRQF_DISABLED is not guaranteed on shared IRQs [ 96.912667] saa7146: found saa7146 @ mem ffffc90011314800 (revision 1, irq 17) (0x13c2,0x101c). [ 96.912673] saa7146 (1): dma buffer size 192512 [ 96.912676] DVB: registering new adapter (TT-Budget S2-1600 PCI) [ 96.930893] adapter has MAC addr = 00:d0:5c:cc:b0:a3 [ 97.233478] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 [ 97.233647] IP: [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x] [ 97.233753] PGD 3c16f067 PUD 3c383067 PMD 0 [ 97.234147] CPU 0 [ 97.234246] Pid: 5200, comm: modprobe Not tainted 2.6.33.2 #1 P5QSE/P5Q SE [ 97.234317] RIP: 0010:[<ffffffffa029c450>] [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x] [ 97.234456] RSP: 0018:ffff88003c125c98 EFLAGS: 00010246 [ 97.234461] RAX: ffffffffa029c460 RBX: ffff88003f84d800 RCX: ffff88003a19e140 [ 97.234461] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 97.234461] RBP: ffff88003f84d828 R08: 0000000000000002 R09: 0000000000000004 [ 97.234461] R10: 0000000000000003 R11: 0000000000000010 R12: ffff88003f84d800 [ 97.234461] R13: ffff88003f84d828 R14: ffff88003f84d828 R15: 0000000000000001 [ 97.234461] FS: 00007f9f7253e6f0(0000) GS:ffff880001800000(0000) knlGS:0000000000000000 [ 97.234461] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 97.234461] CR2: 0000000000000010 CR3: 000000003c382000 CR4: 00000000000006b0 [ 97.234461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.234461] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 97.234461] Process modprobe (pid: 5200, threadinfo ffff88003c124000, task ffff88003e893ac0) [ 97.234461] ffff88003f84d800 ffff88003f84d828 ffff88003f84d800 ffffffffa0292343 [ 97.234461] <0> ffff88003f84d828 ffff88003ef70ae0 ffffffffa0280800 ffffffffa02934d2 [ 97.234461] <0> ffffffffa0295260 0000000000000000 ffffffffa02948b0 ffff88003df79800 [ 97.234461] [<ffffffffa0292343>] ? stv090x_sleep+0x33/0x120 [stv090x] [ 97.234461] [<ffffffffa02934d2>] ? stv090x_attach+0x1e2/0x73c [stv090x] [ 97.234461] [<ffffffff81007cc5>] ? dma_generic_alloc_coherent+0xa5/0x160 [ 97.234461] [<ffffffffa026e1f5>] ? saa7146_init_one+0x7d5/0x910 [saa7146] [ 97.234461] [<ffffffff811b84b2>] ? local_pci_probe+0x12/0x20 [ 97.234461] [<ffffffff811b87d0>] ? pci_device_probe+0x110/0x120 [ 97.234461] [<ffffffff81221788>] ? driver_probe_device+0x98/0x1b0 [ 97.234461] [<ffffffff81221933>] ? __driver_attach+0x93/0xa0 [ 97.234461] [<ffffffff812218a0>] ? __driver_attach+0x0/0xa0 [ 97.234461] [<ffffffff81220f18>] ? bus_for_each_dev+0x58/0x80 [ 97.234461] [<ffffffff8122079d>] ? bus_add_driver+0x14d/0x280 [ 97.234461] [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget] [ 97.234461] [<ffffffff81221c29>] ? driver_register+0x79/0x170 [ 97.234461] [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget] [ 97.234461] [<ffffffff811b8a48>] ? __pci_register_driver+0x58/0xe0 [ 97.234461] [<ffffffffa0284000>] ? budget_init+0x0/0xc [budget] [ 97.234461] [<ffffffff810001d5>] ? do_one_initcall+0x35/0x190 [ 97.234461] [<ffffffff81063d37>] ? sys_init_module+0xe7/0x260 [ 97.234461] [<ffffffff8100256b>] ? system_call_fastpath+0x16/0x1b [ 97.234461] RIP [<ffffffffa029c450>] stv6110x_set_mode+0x70/0x80 [stv6110x] [ 97.234461] RSP <ffff88003c125c98> [ 97.240074] ---[ end trace b53ecbbbbef15e99 ]--- Prevents calling stv6110x_set_mode() if fe->tuner_priv is not defined, in order to avoid the above bug. Signed-off-by: Guy Martin <gmsoft@tuxicoman.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>		2010-06-01 01:21:50 -03:00
..
accessibility	…
acpi	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2010-05-28 16:14:17 -07:00
amba	…
ata	…
atm	…
auxdisplay	…
base	topology: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
block	…
bluetooth	…
cdrom	…
char	drop unused dentry argument to ->fsync	2010-05-27 22:05:02 -04:00
clocksource	…
connector	…
cpufreq	…
cpuidle	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2010-05-28 16:14:17 -07:00
crypto	…
dca	…
dio	…
dma	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2010-05-30 09:12:43 -07:00
edac	drivers/edac: convert logging messages direct uses of __FILE__ to %s, __FILE	2010-05-27 09:12:52 -07:00
eisa	…
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2010-05-27 10:22:06 -07:00
firmware	…
gpio	gpio: Fix inverted rdc321x gpio data out registers	2010-05-28 01:37:59 +02:00
gpu	Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2010-05-28 16:14:40 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-05-27 09:19:55 -07:00
hwmon	hwmon: (lm75) Add support for the Texas Instruments TMP105	2010-05-27 19:59:03 +02:00
i2c	…
ide	…
idle	intel_idle: native hardware cpuidle driver for latest Intel processors	2010-05-28 14:26:20 -04:00
ieee1394	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2010-05-27 10:22:06 -07:00
ieee802154	…
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2010-05-30 09:12:16 -07:00
input	input: Touchscreen driver for TPS6507x	2010-05-28 01:37:38 +02:00
isdn	mISDN: remove unnecessary test on f_pos	2010-05-27 09:12:56 -07:00
leds	leds: Fix leds-gpio openfirmware compile issue	2010-05-28 08:35:27 +01:00
lguest	…
macintosh	…
mca	…
md	md: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
media	V4L/DVB: stv6110x: Fix kernel null pointer deref	2010-06-01 01:21:50 -03:00
memstick	…
message	…
mfd	mfd: Rename twl5031 sih modules	2010-05-28 01:38:02 +02:00
misc	lktdm: add support for hardlockup, softlockup and hung task crashes	2010-05-27 09:12:54 -07:00
mmc	…
mtd	drop unused dentry argument to ->fsync	2010-05-27 22:05:02 -04:00
net	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6	2010-05-30 09:13:08 -07:00
nubus	…
of	…
oprofile	…
parisc	…
parport	…
pci	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2010-05-28 14:42:18 -07:00
pcmcia	…
platform	…
pnp	…
power	…
pps	…
ps3	…
rapidio	rapidio: fix new kernel-doc warnings	2010-05-30 09:02:47 -07:00
regulator	mfd: AB3100 register access change to abx500 API	2010-05-28 01:37:45 +02:00
rtc	mfd: AB3100 register access change to abx500 API	2010-05-28 01:37:45 +02:00
s390	…
sbus	…
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2010-05-27 10:28:11 -07:00
serial	ARM: S5PV210: serial: Fix section mismatch warning	2010-05-28 19:40:05 +09:00
sfi	SFI: add sysfs interface for SFI tables.	2010-05-27 12:46:20 -04:00
sh	…
sn	…
spi	…
ssb	…
staging	Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6	2010-05-30 09:11:11 -07:00
tc	…
telephony	drivers/telephony/ixj.c: use memdup_user	2010-05-27 09:12:42 -07:00
thermal	…
uio	…
usb	drop unused dentry argument to ->fsync	2010-05-27 22:05:02 -04:00
uwb	…
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-05-28 10:18:40 -07:00
video	drop unused dentry argument to ->fsync	2010-05-27 22:05:02 -04:00
virtio	…
vlynq	…
w1	…
watchdog	mfd: Change rdc321x resources flags to IORESOURCE_IO	2010-05-28 01:37:52 +02:00
xen	…
zorro	…
Kconfig	…
Makefile	intel_idle: native hardware cpuidle driver for latest Intel processors	2010-05-28 14:26:20 -04:00