Re: [PATCH net v2] net: x25: fix one potential use-after-free issue

From: David Miller
Date: Tue May 16 2017 - 13:16:45 EST


From: linzhang <xiaolou4617@xxxxxxxxx>
Date: Tue, 16 May 2017 11:52:54 +0800

> return rc;
> -out_dev:
> +out_proc:
> + x25_unregister_sysctl();
> +out_sysctl:
> unregister_netdevice_notifier(&x25_dev_notifier);
> -out_sock:
> +out_dev:
> + dev_remove_pack(&x25_packet_type);
> sock_unregister(AF_X25);
> -out_proto:
> +out_sock:
> proto_unregister(&x25_proto);
> goto out;
> }

Please do not name the labels this way, retain the current convention.
And that is the label names what resources get released not the
resource that we failed to acquire.

So the first label, should be "out_sysctl:" because that is what we
are releasing.