diff options
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/kfifo_buf.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c index c95b61f..d654f42 100644 --- a/drivers/iio/kfifo_buf.c +++ b/drivers/iio/kfifo_buf.c @@ -33,15 +33,17 @@ static int iio_request_update_kfifo(struct iio_buffer *r) int ret = 0; struct iio_kfifo *buf = iio_to_kfifo(r); - if (!buf->update_needed) - goto error_ret; mutex_lock(&buf->user_lock); - kfifo_free(&buf->kf); - ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum, + if (buf->update_needed) { + kfifo_free(&buf->kf); + ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum, buf->buffer.length); + } else { + kfifo_reset_out(&buf->kf); + } r->stufftoread = false; mutex_unlock(&buf->user_lock); -error_ret: + return ret; } |