[media] v4l: vb2: Set data_offset to 0 for single-plane output buffers

Single-planar V4L2 buffers are converted to multi-planar vb2 buffers
with a single plane when queued. The plane data_offset field is not
available in the single-planar API and must be set to 0 for all output
buffers.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 9f81be2..e02c479 100644 (file)
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -921,8 +921,10 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b
                 * In videobuf we use our internal V4l2_planes struct for
                 * single-planar buffers as well, for simplicity.
                 */
-               if (V4L2_TYPE_IS_OUTPUT(b->type))
+               if (V4L2_TYPE_IS_OUTPUT(b->type)) {
                        v4l2_planes[0].bytesused = b->bytesused;
+                       v4l2_planes[0].data_offset = 0;
+               }
 
                if (b->memory == V4L2_MEMORY_USERPTR) {
                        v4l2_planes[0].m.userptr = b->m.userptr;