[PATCH 4.4 101/210] [media] coda: fix first encoded frame payload

From: Greg Kroah-Hartman
Date: Sun Apr 10 2016 - 15:58:58 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>

commit 74dc385cb450089b28c28be2c8a0baca296b95f9 upstream.

During the recent vb2_buffer restructuring, the calculation of the
buffer payload reported to userspace was accidentally broken for the
first encoded frame, counting only the length of the headers.
This patch re-adds the length of the actual frame data.

Fixes: 2d7007153f0c ("[media] media: videobuf2: Restructure vb2_buffer")

Reported-by: Michael Olbrich <m.olbrich@xxxxxxxxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Tested-by: Jan Luebbe <jlu@xxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/media/platform/coda/coda-bit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1342,7 +1342,7 @@ static void coda_finish_encode(struct co

/* Calculate bytesused field */
if (dst_buf->sequence == 0) {
- vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
+ vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr +
ctx->vpu_header_size[0] +
ctx->vpu_header_size[1] +
ctx->vpu_header_size[2]);