V4L/DVB (6621): tda827x: fix NULL pointer dereference during tda827x_probe_version
Fix the following oops:
[ 750.807586] CPU: 1
[ 750.807587] EIP: 0060:[<
f9dde2a3>] Tainted: P VLI
[ 750.807589] EFLAGS:
00010296 (2.6.22-14-generic #1)
[ 750.807599] EIP is at tda827x_probe_version+0xc3/0x130 [tda827x]
[ 750.807603] eax:
00000000 ebx:
f5a45a00 ecx:
00000000 edx:
00000001
[ 750.807607] esi:
f9de05ac edi:
e9b897e0 ebp:
ed8015ac esp:
ed735f58
[ 750.807611] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
[ 750.807615] Process kdvb-fe-1 (pid: 10662, ti=
ed734000 task=
d3b76530 task.ti=
ed734000)
[ 750.807618] Stack:
f9e23972 00000038 ed735fd0 00010060 41ae0001 ed735f73 88b89608 e9b89608
[ 750.807629]
e9b89608 ed801400 f9dde338 e9b89608 f9b2a46b 000000ae 00000a18 d3b76640
[ 750.807639]
fffffffc f9b2bad6 00000003 f4433e68 e962b8c0 f4433e64 00000292 ed735fd0
[ 750.807649] Call Trace:
[ 750.807653] [<
f9e23972>] tda10046_init+0x2d2/0x6c0 [tda1004x]
[ 750.807700] [<
f9dde338>] tda827x_initial_init+0x8/0x20 [tda827x]
[ 750.807713] [<
f9b2a46b>] dvb_frontend_init+0x2b/0x60 [dvb_core]
[ 750.807745] [<
f9b2bad6>] dvb_frontend_thread+0x66/0x2f0 [dvb_core]
[ 750.807780] [complete+64/96] complete+0x40/0x60
[ 750.807805] [<
f9b2ba70>] dvb_frontend_thread+0x0/0x2f0 [dvb_core]
[ 750.807822] [kthread+66/112] kthread+0x42/0x70
[ 750.807828] [kthread+0/112] kthread+0x0/0x70
[ 750.807841] [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10
[ 750.807869] =======================
[ 750.807872] Code: 8b 74 24 20 8b 7c 24 24 83 c4 28 c3 8b 0d 00 0c de f9 85 c9 75 42 be e0 04 de f9 81 c7 0c 01 00 00 b9 33 00 00 00 f3 a5 8b 43 08 <c7> 40 14 50 e3 dd f9 8b 5c 24 1c 31 c0 8b 74 24 20 8b 7c 24 24
[ 750.807925] EIP: [<
f9dde2a3>] tda827x_probe_version+0xc3/0x130 [tda827x] SS:ESP 0068:
ed735f58
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
projects / linux-2.6 / commit