diff options
Diffstat (limited to 'drivers/iio/industrialio-buffer.c')
| -rw-r--r-- | drivers/iio/industrialio-buffer.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 6184c100a94a..cd5bfe39591b 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -166,7 +166,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, * @wait: Poll table structure pointer for which the driver adds * a wait queue * - * Return: (POLLIN | POLLRDNORM) if data is available for reading + * Return: (EPOLLIN | EPOLLRDNORM) if data is available for reading * or 0 for other cases */ __poll_t iio_buffer_poll(struct file *filp, @@ -175,12 +175,12 @@ __poll_t iio_buffer_poll(struct file *filp, struct iio_dev *indio_dev = filp->private_data; struct iio_buffer *rb = indio_dev->buffer; - if (!indio_dev->info) + if (!indio_dev->info || rb == NULL) return 0; poll_wait(filp, &rb->pollq, wait); if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0)) - return POLLIN | POLLRDNORM; + return EPOLLIN | EPOLLRDNORM; return 0; } @@ -1396,7 +1396,7 @@ static int iio_push_to_buffer(struct iio_buffer *buffer, const void *data) * We can't just test for watermark to decide if we wake the poll queue * because read may request less samples than the watermark. */ - wake_up_interruptible_poll(&buffer->pollq, POLLIN | POLLRDNORM); + wake_up_interruptible_poll(&buffer->pollq, EPOLLIN | EPOLLRDNORM); return 0; } |
