Phonet: list subscribed resources via proc_fs

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index d0a4294..947038d 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -373,6 +373,7 @@
 	if (err)
 		return err;
 
+	proc_net_fops_create(&init_net, "pnresource", 0, &pn_res_seq_fops);
 	register_netdevice_notifier(&phonet_device_notifier);
 	err = phonet_netlink_register();
 	if (err)
@@ -385,6 +386,7 @@
 	rtnl_unregister_all(PF_PHONET);
 	unregister_netdevice_notifier(&phonet_device_notifier);
 	unregister_pernet_device(&phonet_net_ops);
+	proc_net_remove(&init_net, "pnresource");
 }
 
 int phonet_route_add(struct net_device *dev, u8 daddr)