vb2_plane_cookie can return NULL if the plane no is greater than
total no of planes or when mem_ops are absent.
Add NULL check to avoid NULL pointer crash in the kernel.
Signed-off-by: Nikhil Devshatwar <nikhil...@ti.com>
---
include/media/videobuf2-dma-contig.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/media/videobuf2-dma-contig.h
b/include/media/videobuf2-dma-contig.h
index 8197f87..5efc56e 100644
--- a/include/media/videobuf2-dma-contig.h
+++ b/include/media/videobuf2-dma-contig.h
@@ -21,7 +21,10 @@ vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb,
unsigned int plane_no)
{
dma_addr_t *addr = vb2_plane_cookie(vb, plane_no);
- return *addr;
+ if (addr == NULL)
+ return addr;
+ else
+ return *addr;
}
void *vb2_dma_contig_init_ctx(struct device *dev);
--
1.7.9.5
--
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