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-rw-r--r--net/sched/sch_api.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 2317db02c764..72d2c204d5f3 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1133,6 +1133,11 @@ skip:
return -ENOENT;
}
+ if (new && new->ops == &noqueue_qdisc_ops) {
+ NL_SET_ERR_MSG(extack, "Cannot assign noqueue to a class");
+ return -EINVAL;
+ }
+
err = cops->graft(parent, cl, new, &old, extack);
if (err)
return err;