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authorPhilipp Zabel <p.zabel@pengutronix.de>2015-03-24 14:30:55 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-04-10 10:09:54 -0300
commit23b6ee5cd9d99d9d99d92ff923d6971a33dc7b03 (patch)
tree3f5ef5fac49922e3eea3ba3b0647995c72081c03 /drivers
parent6ba53b81b6f8ad0fde3d7834ad7714abc12aacaa (diff)
downloadlinux-23b6ee5cd9d99d9d99d92ff923d6971a33dc7b03.tar.bz2
[media] coda: fail to start streaming if userspace set invalid formats
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/platform/coda/coda-common.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 9b46088c8c7b..7dfc86efc055 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1282,12 +1282,23 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
if (!(ctx->streamon_out & ctx->streamon_cap))
return 0;
+ q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+ if ((q_data_src->width != q_data_dst->width &&
+ round_up(q_data_src->width, 16) != q_data_dst->width) ||
+ (q_data_src->height != q_data_dst->height &&
+ round_up(q_data_src->height, 16) != q_data_dst->height)) {
+ v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
+ q_data_src->width, q_data_src->height,
+ q_data_dst->width, q_data_dst->height);
+ ret = -EINVAL;
+ goto err;
+ }
+
/* Allow BIT decoder device_run with no new buffers queued */
if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
ctx->gopcounter = ctx->params.gop_size - 1;
- q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
q_data_dst->fourcc);