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Subject[PATCH 5.4 281/434] media: cedrus: Use helpers to access capture queue
Date
From: Jernej Skrabec <jernej.skrabec@siol.net>

[ Upstream commit 1fd50a2c294457508f06b8b631d01a58de81cdd2 ]

Accessing capture queue structue directly is not safe. Use helpers for
that.

Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/staging/media/sunxi/cedrus/cedrus.h | 8 ++++++--
drivers/staging/media/sunxi/cedrus/cedrus_h264.c | 8 ++++++--
2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 2f017a651848..3758a1c4e2d0 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -179,12 +179,16 @@ static inline dma_addr_t cedrus_buf_addr(struct vb2_buffer *buf,
static inline dma_addr_t cedrus_dst_buf_addr(struct cedrus_ctx *ctx,
int index, unsigned int plane)
{
- struct vb2_buffer *buf;
+ struct vb2_buffer *buf = NULL;
+ struct vb2_queue *vq;

if (index < 0)
return 0;

- buf = ctx->fh.m2m_ctx->cap_q_ctx.q.bufs[index];
+ vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ if (vq)
+ buf = vb2_get_buffer(vq, index);
+
return buf ? cedrus_buf_addr(buf, &ctx->dst_fmt, plane) : 0;
}

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index d6a782703c9b..08c6c9c410cc 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -96,7 +96,7 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
const struct v4l2_ctrl_h264_decode_params *decode = run->h264.decode_params;
const struct v4l2_ctrl_h264_slice_params *slice = run->h264.slice_params;
const struct v4l2_ctrl_h264_sps *sps = run->h264.sps;
- struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
+ struct vb2_queue *cap_q;
struct cedrus_buffer *output_buf;
struct cedrus_dev *dev = ctx->dev;
unsigned long used_dpbs = 0;
@@ -104,6 +104,8 @@ static void cedrus_write_frame_list(struct cedrus_ctx *ctx,
unsigned int output = 0;
unsigned int i;

+ cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
memset(pic_list, 0, sizeof(pic_list));

for (i = 0; i < ARRAY_SIZE(decode->dpb); i++) {
@@ -167,12 +169,14 @@ static void _cedrus_write_ref_list(struct cedrus_ctx *ctx,
enum cedrus_h264_sram_off sram)
{
const struct v4l2_ctrl_h264_decode_params *decode = run->h264.decode_params;
- struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
+ struct vb2_queue *cap_q;
struct cedrus_dev *dev = ctx->dev;
u8 sram_array[CEDRUS_MAX_REF_IDX];
unsigned int i;
size_t size;

+ cap_q = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+
memset(sram_array, 0, sizeof(sram_array));

for (i = 0; i < num_ref; i++) {
--
2.20.1


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