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authorCristina Opriceana <cristina.opriceana@gmail.com>2015-08-03 13:37:40 +0300
committerJonathan Cameron <jic23@kernel.org>2015-08-12 19:26:34 +0100
commit1bdc0293901cbea23c6dc29432e81919d4719844 (patch)
treec47f9eceedb3a99ae5f33dd369f3e175ba527849 /drivers/iio/industrialio-buffer.c
parentaf255cd562aaa72455f9022a26afacd68f3fbf73 (diff)
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: f18e7a068 ("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>
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
-rw-r--r--drivers/iio/industrialio-buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index faed6efa49ec..d7e908acb480 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -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))