[PATCH 09/10] media: coda: throw error on create_bufs with too small size

[Philipp Zabel]

If VIDIOC_CREATE_BUFS is called with a sizeimage smaller than the
queue sizeimage, fail with -EINVAL instead of correcting the size
and continuing without error. This is required by v4l2-compliance.

Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
 drivers/media/platform/coda/coda-common.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/coda/coda-common.c 
b/drivers/media/platform/coda/coda-common.c
index 7b89dbae938d..318f0be103bb 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1522,6 +1522,9 @@ static int coda_queue_setup(struct vb2_queue *vq,
        q_data = get_q_data(ctx, vq->type);
        size = q_data->sizeimage;
 
+       if (*nplanes)
+               return sizes[0] < size ? -EINVAL : 0;
+
        *nplanes = 1;
        sizes[0] = size;
 
-- 
2.20.1