diff options
| author | Cristina Opriceana <cristina.opriceana@gmail.com> | 2015-08-03 13:37:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-09-21 10:02:15 -0700 |
| commit | de1cd705e3173dd268a505e69a7ece661017db86 (patch) | |
| tree | f5cdd5017bf6ab700969cd7c87818bd3053fec43 | |
| parent | 552c1d613e5be53f577f3a31f335598bf662d943 (diff) | |
| download | lwn-de1cd705e3173dd268a505e69a7ece661017db86.tar.gz lwn-de1cd705e3173dd268a505e69a7ece661017db86.zip | |
iio: industrialio-buffer: Fix iio_buffer_poll return value
commit 1bdc0293901cbea23c6dc29432e81919d4719844 upstream.
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>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 0f1d9b2ccdfa..37b52bd44f86 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -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)) |