[IPV6]: Nearly complete kzalloc cleanup for net/ipv6

Stupidly use kzalloc() instead of kmalloc()/memset()
everywhere where this is possible in net/ipv6/*.c .

Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e16c982..7907874 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1877,11 +1877,10 @@
 		/*
 		 * 2. allocate and initialize walker.
 		 */
-		w = kmalloc(sizeof(*w), GFP_ATOMIC);
+		w = kzalloc(sizeof(*w), GFP_ATOMIC);
 		if (w == NULL)
 			return -ENOMEM;
 		RT6_TRACE("dump<%p", w);
-		memset(w, 0, sizeof(*w));
 		w->root = &ip6_routing_table;
 		w->func = fib6_dump_node;
 		w->args = &arg;