Commit b7ccb9fb authored Nov 10, 2016 by Wu-Cheng Li Committed by Mauro Carvalho Chehab Nov 16, 2016

[media] mtk-vcodec: add index check in decoder vidioc_qbuf



vb2_qbuf will check the buffer index. If a driver overrides
vidioc_qbuf and use the buffer index, the driver needs to check
the index.

Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

parent 93d39efd

drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -533,6 +533,10 @@ static int vidioc_vdec_qbuf(struct file file, void priv,
		}

		vq = v4l2_m2m_get_vq(ctx->m2m_ctx, buf->type);
		if (buf->index >= vq->num_buffers) {
		mtk_v4l2_debug(1, "buffer index %d out of range", buf->index);
		return -EINVAL;
		}
		vb = vq->bufs[buf->index];
		vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
		mtkbuf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);

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