linux-kernel - [PATCH 047/118] bonding: IFF_BONDING is not stripped on enslave failure

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Message-Id: <1367933964-1564-48-git-send-email-luis.henriques@canonical.com>
Date:	Tue,  7 May 2013 14:38:13 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Nikolay Aleksandrov <nikolay@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 047/118] bonding: IFF_BONDING is not stripped on enslave failure

3.5.7.12 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: "nikolay@...hat.com" <nikolay@...hat.com>

commit b6a5a7b9a528a8b4c8bec940b607c5dd9102b8cc upstream.

While enslaving a new device and after IFF_BONDING flag is set, in case
of failure it is not stripped from the device's priv_flags while
cleaning up, which could lead to other problems.
Cleaning at err_close because the flag is set after dev_open().

v2: no change

Signed-off-by: Nikolay Aleksandrov <nikolay@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/net/bonding/bond_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 5fc31a1..1e1ae64 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1897,6 +1897,7 @@ err_detach:
 	write_unlock_bh(&bond->lock);
 
 err_close:
+	slave_dev->priv_flags &= ~IFF_BONDING;
 	dev_close(slave_dev);
 
 err_unset_master:
-- 
1.8.1.2

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