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[RFCv2,2/4] videobuf2-core: fill in length field for multiplanar buffers.

Message ID ec45dd04924e6e9000f68d35ae3c01bb79b35a2e.1348824367.git.hans.verkuil@cisco.com (mailing list archive)
State New, archived
Headers show

Commit Message

Hans Verkuil Sept. 28, 2012, 9:30 a.m. UTC 
From: Hans Verkuil <hans.verkuil@cisco.com>

length should be set to num_planes in __fill_v4l2_buffer(). That way the
caller knows how many planes there are in the buffer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 drivers/media/v4l2-core/videobuf2-core.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 5a132b2..432df11 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -348,6 +348,7 @@  static void __fill_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b)
 		 * Fill in plane-related data if userspace provided an array
 		 * for it. The caller has already verified memory and size.
 		 */
+		b->length = vb->num_planes;
 		memcpy(b->m.planes, vb->v4l2_planes,
 			b->length * sizeof(struct v4l2_plane));
 	} else {