[PATCH 4.19 089/187] media: mx2_emmaprp: Correct return type for mem2mem buffer helpers

From: Greg Kroah-Hartman
Date: Thu Apr 04 2019 - 05:38:50 EST


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

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

[ Upstream commit 8d20dcefe471763f23ad538369ec65b51993ffff ]

Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:

v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove

return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.

Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.

Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/mx2_emmaprp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/mx2_emmaprp.c b/drivers/media/platform/mx2_emmaprp.c
index 64195c4ddeaf..419e1cb10dc6 100644
--- a/drivers/media/platform/mx2_emmaprp.c
+++ b/drivers/media/platform/mx2_emmaprp.c
@@ -274,7 +274,7 @@ static void emmaprp_device_run(void *priv)
{
struct emmaprp_ctx *ctx = priv;
struct emmaprp_q_data *s_q_data, *d_q_data;
- struct vb2_buffer *src_buf, *dst_buf;
+ struct vb2_v4l2_buffer *src_buf, *dst_buf;
struct emmaprp_dev *pcdev = ctx->dev;
unsigned int s_width, s_height;
unsigned int d_width, d_height;
@@ -294,8 +294,8 @@ static void emmaprp_device_run(void *priv)
d_height = d_q_data->height;
d_size = d_width * d_height;

- p_in = vb2_dma_contig_plane_dma_addr(src_buf, 0);
- p_out = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+ p_in = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
+ p_out = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
if (!p_in || !p_out) {
v4l2_err(&pcdev->v4l2_dev,
"Acquiring kernel pointers to buffers failed\n");
--
2.19.1