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@xxxxxxxxx>
---
drivers/media/video/videobuf-core.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c
index b7b0584..5f41fd9 100644
--- a/drivers/media/video/videobuf-core.c
+++ b/drivers/media/video/videobuf-core.c
@@ -118,6 +118,7 @@ void videobuf_queue_core_init(struct videobuf_queue *q,
void *priv,
struct videobuf_qtype_ops *int_ops)
{
+ BUG_ON(!q);
memset(q, 0, sizeof(*q));
q->irqlock = irqlock;
q->dev = dev;
--
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