linux-kernel - [PATCH 4.5 104/238] [media] coda: fix first encoded frame payload

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Message-Id: <20160410183502.262552847@linuxfoundation.org>
Date:	Sun, 10 Apr 2016 11:34:41 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Michael Olbrich <m.olbrich@...gutronix.de>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Jan Luebbe <jlu@...gutronix.de>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>
Subject: [PATCH 4.5 104/238] [media] coda: fix first encoded frame payload

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

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

From: Philipp Zabel <p.zabel@...gutronix.de>

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@...gutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
Tested-by: Jan Luebbe <jlu@...gutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@...co.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@....samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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]);