From: David Vrabel <david.vrabel@citrix.com>
Date: Thu, 31 Jul 2014 16:38:22 +0000 (+0100)
Subject: xen-netfront: fix locking in connect error path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=db8c8ab61a28d7e3eb86d247b342a853263262c3;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

xen-netfront: fix locking in connect error path

If no queues could be created when connecting to the backend, one of the
error paths would deadlock.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 055222bae6e4..1cc46d00d20a 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -2001,7 +2001,7 @@ abort_transaction_no_dev_fatal:
 	info->queues = NULL;
 	rtnl_lock();
 	netif_set_real_num_tx_queues(info->netdev, 0);
-	rtnl_lock();
+	rtnl_unlock();
  out:
 	return err;
 }