[PATCH] iio: event: Remove negative error code from iio_event_poll

[Cristina Opriceana]

Negative return values are not supported by iio_event_poll since
its return type is unsigned int.

Signed-off-by: Cristina Opriceana <cristina.opriceana@xxxxxxxxx>
---
 drivers/iio/industrialio-event.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index b2f63f9..eb44dab 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -80,7 +80,7 @@ EXPORT_SYMBOL(iio_push_event);
  * @wait:	Poll table pointer to add the wait queue on
  *
  * Return: (POLLIN | POLLRDNORM) if data is available for reading
- *	   or a negative error code on failure
+ *	   or 0 on failure
  */
 static unsigned int iio_event_poll(struct file *filep,
 			     struct poll_table_struct *wait)
@@ -90,7 +90,7 @@ static unsigned int iio_event_poll(struct file *filep,
 	unsigned int events = 0;
 
 	if (!indio_dev->info)
-		return -ENODEV;
+		return events;
 
 	poll_wait(filep, &ev_int->wait, wait);
 
-- 
1.9.1

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