[NETFILTER]: ip_ct_proto_gre_fini() cannot be __exit

It is invoked from failures paths of __init code.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
index 4108a5e..d716bba 100644
--- a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
+++ b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
@@ -762,7 +762,7 @@
 	.help = conntrack_pptp_help
 };
 
-extern void __exit ip_ct_proto_gre_fini(void);
+extern void ip_ct_proto_gre_fini(void);
 extern int __init ip_ct_proto_gre_init(void);
 
 /* ip_conntrack_pptp initialization */
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_gre.c b/net/ipv4/netfilter/ip_conntrack_proto_gre.c
index 57956de..c777abf 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_gre.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_gre.c
@@ -309,7 +309,10 @@
 	return ip_conntrack_protocol_register(&gre);
 }
 
-void __exit ip_ct_proto_gre_fini(void)
+/* This cannot be __exit, as it is invoked from ip_conntrack_helper_pptp.c's
+ * init() code on errors.
+ */
+void ip_ct_proto_gre_fini(void)
 {
 	struct list_head *pos, *n;