Commit de1cd705 authored by Cristina Opriceana's avatar Cristina Opriceana Committed by Greg Kroah-Hartman

iio: industrialio-buffer: Fix iio_buffer_poll return value

commit 1bdc0293 upstream.

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: default avatarCristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 552c1d61
......@@ -96,7 +96,7 @@ 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_data_available(rb))
......
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