diff options
| author | Philipp Zabel <p.zabel@pengutronix.de> | 2015-12-02 14:58:53 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-12-23 14:03:35 -0200 |
| commit | 49b966fa451c74bcb18fff415db0ae9b102fa33f (patch) | |
| tree | 1741c798f50589f36107b6f5141f0e1fe8fcebf0 /drivers | |
| parent | bb757d7bd3019a0af1513efaf020495b82a43056 (diff) | |
[media] coda: don't start streaming without queued buffers
We could support start streaming with an empty output queue for the
BIT decoders due to the bitstream buffer which could still contain
data at this point, but there is really no reason for userspace to
expect this to work. Simplify the code by disallowing it.
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.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 22f6ceab8f47..6f66a92362ee 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -1252,6 +1252,9 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) struct vb2_v4l2_buffer *buf; int ret = 0; + if (count < 1) + return -EINVAL; + q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) { @@ -1264,20 +1267,10 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) ret = -EINVAL; goto err; } - } else { - if (count < 1) { - ret = -EINVAL; - goto err; - } } ctx->streamon_out = 1; } else { - if (count < 1) { - ret = -EINVAL; - goto err; - } - ctx->streamon_cap = 1; } |