diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7fa2eecac1f47be0a968b2448dc0af2787ea4950..654e964b5c310d964555e0086c746572658df9aa 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -12157,7 +12157,7 @@ void free_fair_sched_group(struct task_group *tg)
 
 	for_each_possible_cpu(i) {
 #ifdef CONFIG_QOS_SCHED
-		if (tg->cfs_rq)
+		if (tg->cfs_rq && tg->cfs_rq[i])
 			unthrottle_qos_sched_group(tg->cfs_rq[i]);
 #endif
 		if (tg->cfs_rq)