security: avoid calling a NULL function pointer in drivers/video/tvaudio.c
authorArjan van de Ven <arjan@linux.intel.com>
Sat, 11 Oct 2008 04:16:12 +0000 (21:16 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 11 Oct 2008 16:54:07 +0000 (09:54 -0700)
commit5ba2f67afb02c5302b2898949ed6fc3b3d37dcf1
treeaa8954769e1eeb0aac55181e698166beaa61f633
parent64f1b65382054f8bfd528f2c4253297c232816eb
security: avoid calling a NULL function pointer in drivers/video/tvaudio.c

NULL function pointers are very bad security wise. This one got caught by
kerneloops.org quite a few times, so it's happening in the field....

Fix is simple, check the function pointer for NULL, like 6 other places
in the same function are already doing.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/media/video/tvaudio.c