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    Subject[PATCH 3.16.y-ckt 028/133] iio: event: Remove negative error code from iio_event_poll
    Date
    3.16.7-ckt18 -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: Luis Henriques <luis.henriques@canonical.com>
    ---
    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 ad7a35f63a16..57672c96566d 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);


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