Messages in this thread Patch in this message | | | From | Ezequiel Garcia <> | Subject | [PATCH v4 1/3] media: rkvdec: Fix .buf_prepare | Date | Mon, 18 May 2020 14:40:09 -0300 |
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The driver should only set the payload on .buf_prepare if the buffer is CAPTURE type, or if an OUTPUT buffer has a zeroed payload.
Fix it.
Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver") Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> --- drivers/staging/media/rkvdec/rkvdec.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c index 225eeca73356..4df2a248ab96 100644 --- a/drivers/staging/media/rkvdec/rkvdec.c +++ b/drivers/staging/media/rkvdec/rkvdec.c @@ -456,7 +456,15 @@ static int rkvdec_buf_prepare(struct vb2_buffer *vb) if (vb2_plane_size(vb, i) < sizeimage) return -EINVAL; } - vb2_set_plane_payload(vb, 0, f->fmt.pix_mp.plane_fmt[0].sizeimage); + + /* + * Buffer's bytesused is written by the driver for CAPTURE buffers, + * or if the application passed zero bytesused on an OUTPUT buffer. + */ + if (!V4L2_TYPE_IS_OUTPUT(vq->type) || + (V4L2_TYPE_IS_OUTPUT(vq->type) && !vb2_get_plane_payload(vb, 0))) + vb2_set_plane_payload(vb, 0, + f->fmt.pix_mp.plane_fmt[0].sizeimage); return 0; } -- 2.26.0.rc2
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