diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 49bf9c5..158aaf4 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -110,7 +110,7 @@
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	size_t datum_size;
 	size_t to_wait;
-	int ret;
+	int ret = 0;
 
 	if (!indio_dev->info)
 		return -ENODEV;
@@ -153,7 +153,7 @@
 		ret = rb->access->read_first_n(rb, n, buf);
 		if (ret == 0 && (filp->f_flags & O_NONBLOCK))
 			ret = -EAGAIN;
-	 } while (ret == 0);
+	} while (ret == 0);
 	remove_wait_queue(&rb->pollq, &wait);
 
 	return ret;