[PATCH 4.2 021/120] iio: event: Remove negative error code from iio_event_poll

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.2 021/120] iio: event: Remove negative error code from iio_event_poll
Date	2015-09-19 19:50 +0200
Message-ID	<qauqR-8nn-5@gated-at.bofh.it> (permalink)
References	<qauhc-8bE-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Cristina Opriceana <cristina.opriceana@gmail.com>

commit 41d903c00051d8f31c98a8136edbac67e6f8688f upstream.

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

Fixes: f18e7a068a0a3 ("iio: Return -ENODEV for file operations if the device has been unregistered")

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/iio/industrialio-event.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -84,7 +84,7 @@ static unsigned int iio_event_poll(struc
 	unsigned int events = 0;
 
 	if (!indio_dev->info)
-		return -ENODEV;
+		return events;
 
 	poll_wait(filep, &ev_int->wait, wait);
 


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[PATCH 4.2 021/120] iio: event: Remove negative error code from iio_event_poll Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-19 19:50 +0200

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