netdev - [PATCH 1/3] xen-netfront: fix locking in connect error path

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Date:	Thu, 31 Jul 2014 17:38:22 +0100
From:	David Vrabel <david.vrabel@...rix.com>
To:	<netdev@...r.kernel.org>
CC:	David Vrabel <david.vrabel@...rix.com>,
	<xen-devel@...ts.xenproject.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>
Subject: [PATCH 1/3] 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@...rix.com>
---
 drivers/net/xen-netfront.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 055222b..1cc46d0 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;
 }
-- 
1.7.10.4

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