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.verk...@cisco.com>
---
drivers/staging/media/cec/cec-api.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/media/cec/cec-api.c
b/drivers/staging/media/cec/cec-api.c
index 559f650..7be7615 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;
--
2.8.1
--
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