[PATCH 2/2] media: videobuf2: add WARN_ON if bytesused is bigger than buffer length

[Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>]

In function vb2_set_plane_payload, report if the
given bytesused is bigger than the buffer size.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
---
 include/media/videobuf2-core.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 2467284e5f26..ffaa1f3361c3 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -1155,8 +1155,10 @@ static inline void *vb2_get_drv_priv(struct vb2_queue *q)
 static inline void vb2_set_plane_payload(struct vb2_buffer *vb,
 				 unsigned int plane_no, unsigned long size)
 {
-	if (plane_no < vb->num_planes)
+	if (plane_no < vb->num_planes) {
+		WARN_ON(size > vb->planes[plane_no].length);
 		vb->planes[plane_no].bytesused = size;
+	}
 }
 
 /**
-- 
2.17.1