[NET]: Fix IPv4/DECnet routing rule dumping

When more rules are present than fit in a single skb, the remaining
rules are incorrectly skipped.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/decnet/dn_rules.c

@@ -399,9 +399,10 @@ int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
 	rcu_read_lock();
 	hlist_for_each_entry(r, node, &dn_fib_rules, r_hlist) {
 		if (idx < s_idx)
-			continue;
+			goto next;
 		if (dn_fib_fill_rule(skb, r, cb, NLM_F_MULTI) < 0)
 			break;
+next:
 		idx++;
 	}
 	rcu_read_unlock();

net/ipv4/fib_rules.c

@@ -457,13 +457,13 @@ int inet_dump_rules(struct sk_buff *skb, struct netlink_callback *cb)
 
 	rcu_read_lock();
 	hlist_for_each_entry(r, node, &fib_rules, hlist) {
-
 		if (idx < s_idx)
-			continue;
+			goto next;
 		if (inet_fill_rule(skb, r, NETLINK_CB(cb->skb).pid,
 				   cb->nlh->nlmsg_seq,
 				   RTM_NEWRULE, NLM_F_MULTI) < 0)
 			break;
+next:
 		idx++;
 	}
 	rcu_read_unlock();