[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, 3 insertions, 6 deletions

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 37976dcf044b..fea2d3ed9cbd 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -420,8 +420,7 @@ static int __devinit cn_init(void)
 
         dev->cbdev = cn_queue_alloc_dev("cqueue", dev->nls);
         if (!dev->cbdev) {
-                if (dev->nls->sk_socket)
-                        sock_release(dev->nls->sk_socket);
+                netlink_kernel_release(dev->nls);
                 return -EINVAL;
         }
         
@@ -431,8 +430,7 @@ static int __devinit cn_init(void)
         if (err) {
                 cn_already_initialized = 0;
                 cn_queue_free_dev(dev->cbdev);
-                if (dev->nls->sk_socket)
-                        sock_release(dev->nls->sk_socket);
+                netlink_kernel_release(dev->nls);
                 return -EINVAL;
         }
 
@@ -447,8 +445,7 @@ static void __devexit cn_fini(void)
 
         cn_del_callback(&dev->id);
         cn_queue_free_dev(dev->cbdev);
-        if (dev->nls->sk_socket)
-                sock_release(dev->nls->sk_socket);
+        netlink_kernel_release(dev->nls);
 }
 
 subsys_initcall(cn_init);