There are several problems in error handling in br_add_bridge:
- when dev_alloc_name fails, allocated net_device is not freed
- unregister_netdev is called when rtnl lock is held
- free_netdev is called before netdev_run_todo has a chance to be run after
unregistering net_device
This patch should fix these issues.
Signed-off-by: Jiri Benc <[EMAIL PROTECTED]>
---
net/bridge/br_if.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
--- dscape.orig/net/bridge/br_if.c
+++ dscape/net/bridge/br_if.c
@@ -306,20 +306,19 @@ int br_add_bridge(const char *name)
ret = register_netdevice(dev);
if (ret)
- goto err2;
+ goto err1;
ret = br_sysfs_addbr(dev);
if (ret)
- goto err3;
+ goto err2;
rtnl_unlock();
return 0;
- err3:
- unregister_netdev(dev);
err2:
- free_netdev(dev);
+ unregister_netdevice(dev);
err1:
rtnl_unlock();
+ free_netdev(dev);
return ret;
}
--
Jiri Benc
SUSE Labs
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