[NETFILTER]: {ip,nf}_conntrack_netlink: fix expectation notifier unregistration

This patch fixes expectation notifier unregistration on module unload to
use ip_conntrack_expect_unregister_notifier(). This bug causes a soft
lockup at the first expectation created after a rmmod ; insmod of this
module.

Should go into -stable as well.

Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
index 9b6e19bae90f..01bd7cab9367 100644
--- a/net/ipv4/netfilter/ip_conntrack_netlink.c
+++ b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -1658,7 +1658,7 @@ static void __exit ctnetlink_exit(void)
         printk("ctnetlink: unregistering from nfnetlink.\n");
 
 #ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
-        ip_conntrack_unregister_notifier(&ctnl_notifier_exp);
+        ip_conntrack_expect_unregister_notifier(&ctnl_notifier_exp);
         ip_conntrack_unregister_notifier(&ctnl_notifier);
 #endif
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 3138ae79fa21..bd10eb944b65 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1687,7 +1687,7 @@ static void __exit ctnetlink_exit(void)
         printk("ctnetlink: unregistering from nfnetlink.\n");
 
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
-        nf_conntrack_unregister_notifier(&ctnl_notifier_exp);
+        nf_conntrack_expect_unregister_notifier(&ctnl_notifier_exp);
         nf_conntrack_unregister_notifier(&ctnl_notifier);
 #endif