[PATCH 1/7] media: coda: set output buffer bytesused to appease v4l2-compliance

[Philipp Zabel <p.zabel@pengutronix.de>]

The V4L2 specification states:

 "If the application sets this to 0 for an output stream, then bytesused
  will be set to the size of the buffer (see the length field of this
  struct) by the driver."

Since we set allow_zero_bytesused, we have to handle this ourselves.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
 drivers/media/platform/chips-media/coda-bit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/chips-media/coda-bit.c b/drivers/media/platform/chips-media/coda-bit.c
index c484c008ab02..705a179ea8f0 100644
--- a/drivers/media/platform/chips-media/coda-bit.c
+++ b/drivers/media/platform/chips-media/coda-bit.c
@@ -381,6 +381,9 @@ void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list)
 		/* Dump empty buffers */
 		if (!vb2_get_plane_payload(&src_buf->vb2_buf, 0)) {
 			src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+			vb2_set_plane_payload(&src_buf->vb2_buf, 0,
+					      vb2_plane_size(&src_buf->vb2_buf,
+							     0));
 			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
 			continue;
 		}
-- 
2.30.2