Commit 1bdc0293 authored Aug 03, 2015 by Cristina Opriceana Committed by Jonathan Cameron Aug 12, 2015

iio: industrialio-buffer: Fix iio_buffer_poll return value



Change return value to 0 if no device is bound since
unsigned int cannot support negative error codes.

Fixes: f18e7a06 ("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>

parent af255cd5

drivers/iio/industrialio-buffer.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -164,7 +164,7 @@ unsigned int iio_buffer_poll(struct file *filp,
		struct iio_buffer *rb = indio_dev->buffer;

		if (!indio_dev->info)
		return -ENODEV;
		return 0;

		poll_wait(filp, &rb->pollq, wait);
		if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0))