tree c840d7f3cb867b5cd382cb83d54c6006b8d9d02a
parent d5709a0e3dfe22e24d871ef1e0eec9ae04055997
author Figo.zhang <figo1802@gmail.com> 1243994464 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> 1245190071 -0300

V4L/DVB (11991): buf-core.c: add pointer check

add poiter check for videobuf_queue_core_init().

any guys who write a v4l driver, pass a NULL pointer or a non-inintial
pointer to the first parameter such as videobuf_queue_sg_init() , it
would be crashed.

Signed-off-by: Figo.zhang <figo1802@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>