diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2016-07-17 13:02:44 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-19 13:27:10 -0300 |
| commit | b7cbc892532316f2abd880186301e57239a17f28 (patch) | |
| tree | fa7ae7b586601f8779620bfb0c3ee932d447a4a4 | |
| parent | 83505028d859bcbb69691aabade9dc633e5b74ea (diff) | |
[media] cec: poll should check if there is room in the tx queue
For POLLOUT poll only checked if the adapter was configured, not
if there was room in the transmit queue. Add that check.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | drivers/staging/media/cec/cec-api.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/staging/media/cec/cec-api.c b/drivers/staging/media/cec/cec-api.c index 559f6500d114..7be7615a0fdf 100644 --- a/drivers/staging/media/cec/cec-api.c +++ b/drivers/staging/media/cec/cec-api.c @@ -52,7 +52,8 @@ static unsigned int cec_poll(struct file *filp, if (!devnode->registered) return POLLERR | POLLHUP; mutex_lock(&adap->lock); - if (adap->is_configured) + if (adap->is_configured && + adap->transmit_queue_sz < CEC_MAX_MSG_TX_QUEUE_SZ) res |= POLLOUT | POLLWRNORM; if (fh->queued_msgs) res |= POLLIN | POLLRDNORM; |