tipc: remove pointless check for NULL prior to kfree

It is acceptable to call kfree() with NULL, so these checks are not
serving any useful purpose.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 8bacd57..db14b7e 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -269,9 +269,7 @@
 		buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT);
 		tipc_nodesub_unsubscribe(&p_ptr->subscription);
 	}
-	if (p_ptr->user_port) {
-		kfree(p_ptr->user_port);
-	}
+	kfree(p_ptr->user_port);
 
 	spin_lock_bh(&tipc_port_list_lock);
 	list_del(&p_ptr->port_list);