diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 74f697c4a4d30209def45147cd6e7859b4b79cfe..9fb5ee64834a03a57fd77bf475050ff9502fcf83 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -658,6 +658,9 @@ static int sfq_change(struct Qdisc *sch, struct nlattr *opt)
 		if (!p)
 			return -ENOMEM;
 	}
+	if (ctl->limit == 1)
+		return -EINVAL;
+
 	sch_tree_lock(sch);
 	if (ctl->quantum) {
 		q->quantum = ctl->quantum;