diff options
| author | Ming Qian <ming.qian@nxp.com> | 2022-11-01 08:04:20 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-11-25 07:27:19 +0000 |
| commit | e1b558cd9a735f5dc283ecdb5593ff53d398c9c6 (patch) | |
| tree | cdee170147ff131a91d11a894de7a56730e70c05 /drivers | |
| parent | f74d3f326d1d5b8951ce263c59a121ecfa65e7c0 (diff) | |
media: amphion: add lock around vdec_g_fmt
the capture format may be changed when
sequence header is parsed,
it may be read and write in the same time,
add lock around vdec_g_fmt to synchronize it
Fixes: 6de8d628df6e ("media: amphion: add v4l2 m2m vpu decoder stateful driver")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/platform/amphion/vdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c index 84c90ce265f2..b27e6bed85f0 100644 --- a/drivers/media/platform/amphion/vdec.c +++ b/drivers/media/platform/amphion/vdec.c @@ -286,6 +286,7 @@ static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f) struct vpu_format *cur_fmt; int i; + vpu_inst_lock(inst); cur_fmt = vpu_get_format(inst, f->type); pixmp->pixelformat = cur_fmt->pixfmt; @@ -303,6 +304,7 @@ static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f) f->fmt.pix_mp.xfer_func = vdec->codec_info.transfer_chars; f->fmt.pix_mp.ycbcr_enc = vdec->codec_info.matrix_coeffs; f->fmt.pix_mp.quantization = vdec->codec_info.full_range; + vpu_inst_unlock(inst); return 0; } |