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charset="utf-8" Setting the buffer status to error if the media request of each source buffer is NULL, then schedule the work to process again in case of access NULL pointer. Signed-off-by: Yunfei Dong --- .../vcodec/decoder/mtk_vcodec_dec_stateless.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_= stateless.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec= _stateless.c index 3f94654ebc73..251111678fd8 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_statele= ss.c +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_statele= ss.c @@ -363,10 +363,14 @@ static void mtk_vdec_worker(struct work_struct *work) ctx->id, bs_src->va, &bs_src->dma_addr, bs_src->size, vb2_src); /* Apply request controls. */ src_buf_req =3D vb2_src->req_obj.req; - if (src_buf_req) + if (src_buf_req) { v4l2_ctrl_request_setup(src_buf_req, &ctx->ctrl_hdl); - else + } else { mtk_v4l2_vdec_err(ctx, "vb2 buffer media request is NULL"); + v4l2_m2m_buf_done(vb2_v4l2_src, VB2_BUF_STATE_ERROR); + v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); + return; + } =20 ret =3D vdec_if_decode(ctx, bs_src, NULL, &res_chg); if (ret && ret !=3D -EAGAIN) { @@ -384,8 +388,7 @@ static void mtk_vdec_worker(struct work_struct *work) state =3D ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE; if (!IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch) || ctx->current_codec =3D=3D V4L2_PIX_FMT_VP8_FRAME) { - if (src_buf_req) - v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); + v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); vb2_v4l2_dst =3D v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); v4l2_m2m_buf_done(vb2_v4l2_dst, state); v4l2_m2m_buf_done(vb2_v4l2_src, state); @@ -403,8 +406,7 @@ static void mtk_vdec_worker(struct work_struct *work) */ ctx->cur_src_buffer =3D (ret !=3D -EAGAIN) ? NULL : vb2_v4l2_src; if (ret && ret !=3D -EAGAIN) { - if (src_buf_req) - v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); + v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); v4l2_m2m_buf_done(vb2_v4l2_src, state); } =20 --=20 2.46.0