dlm: convert add_sock routine return value type to void

Since add_sock() always returns a success code - 0, its return
value type should be changed from integer to void.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David Teigland <teigland@redhat.com>
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 3e6aacc..3637f3f 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -473,7 +473,7 @@
 }
 
 /* Make a socket active */
-static int add_sock(struct socket *sock, struct connection *con)
+static void add_sock(struct socket *sock, struct connection *con)
 {
 	con->sock = sock;
 
@@ -483,7 +483,6 @@
 	con->sock->sk->sk_state_change = lowcomms_state_change;
 	con->sock->sk->sk_user_data = con;
 	con->sock->sk->sk_allocation = GFP_NOFS;
-	return 0;
 }
 
 /* Add the port number to an IPv6 or 4 sockaddr and return the address