net_sched: use __TCA_HTB_MAX and TCA_HTB_MAX

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 4be8d04..87d9449 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1302,14 +1302,14 @@
 	struct htb_class *cl = (struct htb_class *)*arg, *parent;
 	struct nlattr *opt = tca[TCA_OPTIONS];
 	struct qdisc_rate_table *rtab = NULL, *ctab = NULL;
-	struct nlattr *tb[TCA_HTB_RTAB + 1];
+	struct nlattr *tb[__TCA_HTB_MAX];
 	struct tc_htb_opt *hopt;
 
 	/* extract all subattrs from opt attr */
 	if (!opt)
 		goto failure;
 
-	err = nla_parse_nested(tb, TCA_HTB_RTAB, opt, htb_policy);
+	err = nla_parse_nested(tb, TCA_HTB_MAX, opt, htb_policy);
 	if (err < 0)
 		goto failure;