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Series |
media: amphion: add lock around vdec_g_fmt
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Commit Message
Ming Qian
Nov. 1, 2022, 8:04 a.m. UTC
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>
---
drivers/media/platform/amphion/vdec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c index 0d7676eee5ea..87f9f8e90ab1 100644 --- a/drivers/media/platform/amphion/vdec.c +++ b/drivers/media/platform/amphion/vdec.c @@ -314,6 +314,7 @@ 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; @@ -331,6 +332,7 @@ 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; }