diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index af8c63a9ec18c53cdca0ac0bee6ff97af58996ec..b19e4cd08ed6f269434a6bc8ba32d994589b088f 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -421,15 +421,16 @@ static int qfq_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	} else
 		weight = 1;
 
-	if (tb[TCA_QFQ_LMAX]) {
+	if (tb[TCA_QFQ_LMAX])
 		lmax = nla_get_u32(tb[TCA_QFQ_LMAX]);
-		if (lmax < QFQ_MIN_LMAX || lmax > (1UL << QFQ_MTU_SHIFT)) {
-			pr_notice("qfq: invalid max length %u\n", lmax);
-			return -EINVAL;
-		}
-	} else
+	else
 		lmax = psched_mtu(qdisc_dev(sch));
 
+	if (lmax < QFQ_MIN_LMAX || lmax > (1UL << QFQ_MTU_SHIFT)) {
+		pr_notice("qfq: invalid max length %u\n", lmax);
+		return -EINVAL;
+	}
+
 	inv_w = ONE_FP / weight;
 	weight = ONE_FP / inv_w;