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>
diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index a11f7a4..a3bed28 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -291,6 +291,8 @@
rtnl_lock();
err = __rtnl_link_register(&ifb_link_ops);
+ if (err < 0)
+ goto out;
for (i = 0; i < numifbs && !err; i++) {
err = ifb_init_one(i);
@@ -298,6 +300,8 @@
}
if (err)
__rtnl_link_unregister(&ifb_link_ops);
+
+out:
rtnl_unlock();
return err;