diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ee3d9e2d9c5b8c5b2665d4e9f298cb07f06326c0..49818f4fc532c113b480f8484edb073a5a40535a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -11827,7 +11827,7 @@ 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)