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iio: event: Remove negative error code from iio_event_poll 

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

Fixes: f18e7a068a ("iio: Return -ENODEV for file operations if the device has been unregistered")

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Cristina Opriceana 2015-08-03 13:00:47 +03:00 committed by Jonathan Cameron
parent 1bdc029390
commit 41d903c000
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/industrialio-event.c
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@ -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);