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ifb: fix oops when loading the ifb failed 

If __rtnl_link_register() return faild when loading the ifb, it will
take the wrong path and get oops, so fix it just like dummy.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
dingtianhong 2013-07-11 19:04:06 +08:00 committed by David S. Miller
parent 2c8a01894a
commit f2966cd569
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ifb.c
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@ -291,6 +291,8 @@ static int __init ifb_init_module(void)
rtnl_lock(); rtnl_lock();
err = __rtnl_link_register(&ifb_link_ops); err = __rtnl_link_register(&ifb_link_ops);
if (err < 0)
goto out;
for (i = 0; i < numifbs && !err; i++) { for (i = 0; i < numifbs && !err; i++) {
err = ifb_init_one(i); err = ifb_init_one(i);
@ -298,6 +300,8 @@ static int __init ifb_init_module(void)
} }
if (err) if (err)
__rtnl_link_unregister(&ifb_link_ops); __rtnl_link_unregister(&ifb_link_ops);
out:
rtnl_unlock(); rtnl_unlock();
return err; return err;