[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>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 9f81be23a81f..e02c4797b1c6 100644
--- 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;