[NETNS]: Consolidate kernel netlink socket destruction.

Create a specific helper for netlink kernel socket disposal. This just
let the code look better and provides a ground for proper disposal
inside a namespace.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Tested-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 2aee0f51087..bd13b6f4a98 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -178,6 +178,7 @@ extern struct sock *netlink_kernel_create(struct net *net,
                                           void (*input)(struct sk_buff *skb),
                                           struct mutex *cb_mutex,
                                           struct module *module);
+extern void netlink_kernel_release(struct sock *sk);
 extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
 extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group);
 extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);