This fixes a failure in vb2_qbuf in user pointer mode where
__qbuf_userptr checks if the buffer queued by userspace is large
enough. The failure would happen if coda_queue_setup was called
with empty fmt (and thus set the expected buffer size to the maximum
resolution), and userspace queues buffers of smaller size -
corresponding to the negotiated dimensions - were queued.
Explicitly setting sizeimage to the value negotiated via s_fmt
fixes the issue.
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
drivers/media/platform/coda.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 0235f4e..0e0b4fe 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -813,18 +813,11 @@ static int coda_queue_setup(struct vb2_queue *vq,
unsigned int sizes[], void *alloc_ctxs[])
{
struct coda_ctx *ctx = vb2_get_drv_priv(vq);
+ struct coda_q_data *q_data;
unsigned int size;
- if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- if (fmt)
- size = fmt->fmt.pix.width *
- fmt->fmt.pix.height * 3 / 2;
- else
- size = MAX_W *
- MAX_H * 3 / 2;
- } else {
- size = CODA_MAX_FRAME_SIZE;
- }
+ q_data = get_q_data(ctx, vq->type);
+ size = q_data->sizeimage;
*nplanes = 1;
sizes[0] = size;
--
1.7.10.4
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