1 files changed, 5 insertions, 2 deletions

diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 9e43ed949167..d728d8111732 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1960,8 +1960,11 @@ static int cbq_delete(struct Qdisc *sch, unsigned long arg)
         cbq_rmprio(q, cl);
         sch_tree_unlock(sch);
 
-        if (--cl->refcnt == 0)
-                cbq_destroy_class(sch, cl);
+        BUG_ON(--cl->refcnt == 0);
+        /*
+         * This shouldn't happen: we "hold" one cops->get() when called
+         * from tc_ctl_tclass; the destroy method is done from cops->put().
+         */
 
         return 0;
 }