[PATCH] xen/pvcalls-back: Remove redundant 'flush_workqueue()' calls

[Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>]

'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
-       flush_workqueue(E);
        destroy_workqueue(E);

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 drivers/xen/pvcalls-back.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index b47fd8435061..d6f945fd4147 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -465,7 +465,6 @@ static int pvcalls_back_release_passive(struct 
xenbus_device *dev,
                write_unlock_bh(&mappass->sock->sk->sk_callback_lock);
        }
        sock_release(mappass->sock);
-       flush_workqueue(mappass->wq);
        destroy_workqueue(mappass->wq);
        kfree(mappass);
 
-- 
2.30.2