[PATCH 3.19.y-ckt 034/156] iio: event: Remove negative error code from iio_event_poll
From: Kamal Mostafa
Date: Tue Oct 20 2015 - 18:18:52 EST
3.19.8-ckt8 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Cristina Opriceana <cristina.opriceana@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/iio/industrialio-event.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 35c02ae..158a760 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -84,7 +84,7 @@ 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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