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-rw-r--r--net/sched/sch_fifo.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
index a579a4131d22..e1040421b797 100644
--- a/net/sched/sch_fifo.c
+++ b/net/sched/sch_fifo.c
@@ -233,6 +233,9 @@ int fifo_set_limit(struct Qdisc *q, unsigned int limit)
if (strncmp(q->ops->id + 1, "fifo", 4) != 0)
return 0;
+ if (!q->ops->change)
+ return 0;
+
nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)), GFP_KERNEL);
if (nla) {
nla->nla_type = RTM_NEWQDISC;