diff options
| author | Yunfei Dong <yunfei.dong@mediatek.com> | 2022-11-17 09:24:49 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-11-25 11:27:21 +0000 |
| commit | d879f770e4d1d5f0d9b692d3a2702f23ee441dbb (patch) | |
| tree | 02f6aaf2c98784427918c87496fce050bca1ba03 /drivers/media | |
| parent | 1ade3f3f16986cd7c6fce02feede957f03eb8a42 (diff) | |
| download | linux-d879f770e4d1d5f0d9b692d3a2702f23ee441dbb.tar.bz2 | |
media: mediatek: vcodec: Fix getting NULL pointer for dst buffer
The driver may can't get v4l2 buffer when lat or core decode timeout,
will lead to crash when call v4l2_m2m_buf_done to set dst buffer
(NULL pointer) done.
Fixes: 7b182b8d9c85 ("media: mediatek: vcodec: Refactor get and put capture buffer flow")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c index c45bd2599bb2..e86809052a9f 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_stateless.c @@ -138,10 +138,13 @@ static void mtk_vdec_stateless_cap_to_disp(struct mtk_vcodec_ctx *ctx, int error state = VB2_BUF_STATE_DONE; vb2_dst = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); - v4l2_m2m_buf_done(vb2_dst, state); - - mtk_v4l2_debug(2, "free frame buffer id:%d to done list", - vb2_dst->vb2_buf.index); + if (vb2_dst) { + v4l2_m2m_buf_done(vb2_dst, state); + mtk_v4l2_debug(2, "free frame buffer id:%d to done list", + vb2_dst->vb2_buf.index); + } else { + mtk_v4l2_err("dst buffer is NULL"); + } if (src_buf_req) v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); |