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| author | Jay Vosburgh <fubar@us.ibm.com> | 2008-05-03 03:06:02 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-05-06 18:01:32 +0200 |
| commit | 569f0c4d909c7f73de634abcdc36344cb72de36a (patch) | |
| tree | e8fead8972dd34fde23e0931bffa17e9dbdb8bfb | |
| parent | bonding: Deadlock between bonding_store_bonds and bond_destroy_sysfs. (diff) | |
| download | linux-569f0c4d909c7f73de634abcdc36344cb72de36a.tar.xz linux-569f0c4d909c7f73de634abcdc36344cb72de36a.zip | |
bonding: fix enslavement error unwinds
As part of:
commit c2edacf80e155ef54ae4774379d461b60896bc2e
Author: Jay Vosburgh <fubar@us.ibm.com>
Date: Mon Jul 9 10:42:47 2007 -0700
bonding / ipv6: no addrconf for slaves separately from master
two steps were rearranged in the enslavement process: netdev_set_master
is now before the call to dev_open to open the slave.
This patch updates the error cases and unwind process at the
end of bond_enslave to match the new order. Without this patch, it is
possible for the enslavement to fail, but leave the slave with IFF_SLAVE
set in its flags.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index e41b3e57260c..50a40e433154 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1425,13 +1425,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) res = netdev_set_master(slave_dev, bond_dev); if (res) { dprintk("Error %d calling netdev_set_master\n", res); - goto err_close; + goto err_restore_mac; } /* open the slave since the application closed it */ res = dev_open(slave_dev); if (res) { dprintk("Openning slave %s failed\n", slave_dev->name); - goto err_restore_mac; + goto err_unset_master; } new_slave->dev = slave_dev; @@ -1444,7 +1444,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) */ res = bond_alb_init_slave(bond, new_slave); if (res) { - goto err_unset_master; + goto err_close; } } @@ -1619,7 +1619,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) res = bond_create_slave_symlinks(bond_dev, slave_dev); if (res) - goto err_unset_master; + goto err_close; printk(KERN_INFO DRV_NAME ": %s: enslaving %s as a%s interface with a%s link.\n", @@ -1631,12 +1631,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) return 0; /* Undo stages on error */ -err_unset_master: - netdev_set_master(slave_dev, NULL); - err_close: dev_close(slave_dev); +err_unset_master: + netdev_set_master(slave_dev, NULL); + err_restore_mac: if (!bond->params.fail_over_mac) { memcpy(addr.sa_data, new_slave->perm_hwaddr, ETH_ALEN); |