From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 28 Jul 2009 03:47:39 +0000 (+0000)
Subject: pppol2tp: calls unregister_pernet_gen_device() at unload time
X-Git-Tag: v2.6.30.7~18
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bcb9e52411cb2069fce6720cdc314651c1f200c1;p=thirdparty%2Fkernel%2Fstable.git

pppol2tp: calls unregister_pernet_gen_device() at unload time

[ Upstream commit 446e72f30eca76d6f9a1a54adf84d2c6ba2831f8 ]

Failure to call unregister_pernet_gen_device() can exhaust memory
if module is loaded/unloaded many times.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c
index 5b07dd8e5c04e..72be141d792f3 100644
--- a/drivers/net/pppol2tp.c
+++ b/drivers/net/pppol2tp.c
@@ -2682,6 +2682,7 @@ out_unregister_pppol2tp_proto:
 static void __exit pppol2tp_exit(void)
 {
 	unregister_pppox_proto(PX_PROTO_OL2TP);
+	unregister_pernet_gen_device(pppol2tp_net_id, &pppol2tp_net_ops);
 	proto_unregister(&pppol2tp_sk_proto);
 }