From: Jay Vosburgh <fubar@us.ibm.com>
Date: Wed, 8 Feb 2006 05:17:22 +0000 (-0800)
Subject: [PATCH] bonding: fix a locking bug in bond_release
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=f5e2a7b22e7d7dfda8794906d0fddeaaa09bb944;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] bonding: fix a locking bug in bond_release

bond_release returns EINVAL without releasing the bond lock if the
slave device is not being bonded by the bond.  The following patch
ensures that the lock is released in this case.

Signed-off-by: Stephen J. Bevan <stephen@dino.dnsalias.com>
Acked-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e0f51afec778..bcf9f17daf0d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1581,6 +1581,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 		printk(KERN_INFO DRV_NAME
 		       ": %s: %s not enslaved\n",
 		       bond_dev->name, slave_dev->name);
+		write_unlock_bh(&bond->lock);
 		return -EINVAL;
 	}