appletalk:: da.s_net not copied but assigned to itself in aarp_rcv()

da.s_net was not copied but assigned to itself.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/appletalk/aarp.c

@@ -819,7 +819,7 @@ static int aarp_rcv(struct sk_buff *skb, struct net_device *dev,
 				ma = &ifa->address;
 			else { /* We need to make a copy of the entry. */
 				da.s_node = sa.s_node;
-				da.s_net = da.s_net;
+				da.s_net = sa.s_net;
 				ma = &da;
 			}