vhost: Remove unnecessary variable

It is unnecessary to use ret variable to return the error
code, just return the error code directly.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 0536f85..1ac9de2 100644 (file)
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -203,7 +203,6 @@ EXPORT_SYMBOL_GPL(vhost_poll_init);
 int vhost_poll_start(struct vhost_poll *poll, struct file *file)
 {
        __poll_t mask;
-       int ret = 0;
 
        if (poll->wqh)
                return 0;
@@ -213,10 +212,10 @@ int vhost_poll_start(struct vhost_poll *poll, struct file *file)
                vhost_poll_wakeup(&poll->wait, 0, 0, poll_to_key(mask));
        if (mask & EPOLLERR) {
                vhost_poll_stop(poll);
-               ret = -EINVAL;
+               return -EINVAL;
        }
 
-       return ret;
+       return 0;
 }
 EXPORT_SYMBOL_GPL(vhost_poll_start);