1 files changed, 5 insertions, 2 deletions

diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index e36e94ab4e10..7597fe146866 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -155,8 +155,11 @@ static int drr_delete_class(struct Qdisc *sch, unsigned long arg)
         drr_purge_queue(cl);
         qdisc_class_hash_remove(&q->clhash, &cl->common);
 
-        if (--cl->refcnt == 0)
-                drr_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().
+         */
 
         sch_tree_unlock(sch);
         return 0;