V4L/DVB: videobuf: add missing checks for kzalloc returning NULL

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
index fa78555b118b..fcd045e7a1c1 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -418,6 +418,8 @@ static void *__videobuf_alloc(size_t size)
         struct videobuf_buffer *vb;
 
         vb = kzalloc(size+sizeof(*mem),GFP_KERNEL);
+        if (!vb)
+                return vb;
 
         mem = vb->priv = ((char *)vb)+size;
         mem->magic=MAGIC_SG_MEM;