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media: cedrus: Stop direct calls to queue num_buffers field

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Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.
While at it, check the return value of vb2_get_buffer().

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
CC: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Benjamin Gaignard
2023-11-09 17:34:51 +01:00
committed by Mauro Carvalho Chehab
parent 88d9ce34a6
commit e1d2fcf99d
2 changed files with 14 additions and 4 deletions
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9
drivers/staging/media/sunxi/cedrus/cedrus_h264.c
View File

@@ -653,8 +653,13 @@ static void cedrus_h264_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
for (i = 0; i < vq->num_buffers; i++) {
buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
for (i = 0; i < vb2_get_num_buffers(vq); i++) {
struct vb2_buffer *vb = vb2_get_buffer(vq, i);
if (!vb)
continue;
buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h264.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,

9
drivers/staging/media/sunxi/cedrus/cedrus_h265.c
View File

@@ -869,8 +869,13 @@ static void cedrus_h265_stop(struct cedrus_ctx *ctx)
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
for (i = 0; i < vq->num_buffers; i++) {
buf = vb2_to_cedrus_buffer(vb2_get_buffer(vq, i));
for (i = 0; i < vb2_get_num_buffers(vq); i++) {
struct vb2_buffer *vb = vb2_get_buffer(vq, i);
if (!vb)
continue;
buf = vb2_to_cedrus_buffer(vb);
if (buf->codec.h265.mv_col_buf_size > 0) {
dma_free_attrs(dev->dev,