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V4L/DVB (11991): buf-core.c: add pointer check
authorFigo.zhang <figo1802@gmail.com>
Wed, 3 Jun 2009 02:01:04 +0000 (23:01 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 16 Jun 2009 22:07:51 +0000 (19:07 -0300)
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>

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