tipc: eliminate redundant code with kfree_skb_list routine

sk_buff lists are currently relased by looping over the list and
explicitly releasing each buffer.

We replace all occurrences of this loop with a call to kfree_skb_list().

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 25100c0..bf1ac89 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -291,11 +291,7 @@
 
 	/* Flush broadcast link info associated with lost node */
 	if (n_ptr->bclink.recv_permitted) {
-		while (n_ptr->bclink.deferred_head) {
-			struct sk_buff *buf = n_ptr->bclink.deferred_head;
-			n_ptr->bclink.deferred_head = buf->next;
-			kfree_skb(buf);
-		}
+		kfree_skb_list(n_ptr->bclink.deferred_head);
 		n_ptr->bclink.deferred_size = 0;
 
 		if (n_ptr->bclink.reasm_head) {