iio: ensure ret is initialized to zero before entering do loop

[cascardo/linux.git] / drivers / iio / industrialio-buffer.c

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 49bf9c5..158aaf4 100644 (file)
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -110,7 +110,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
        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 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
                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;