diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index fa063c6c0338edc3df20295f84cbcae2c1b46572..d53b0d69dd7363df56ea0d30a908f852a8e1e15d 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -82,6 +82,8 @@ static void blkg_free(struct blkcg_gq *blkg)
 		if (blkg->pd[i])
 			blkcg_policy[i]->pd_free_fn(blkg->pd[i]);
 
+	if (blkg->q)
+		blk_put_queue(blkg->q);
 	free_percpu(blkg->iostat_cpu);
 	percpu_ref_exit(&blkg->refcnt);
 	kfree(blkg);
@@ -167,6 +169,9 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q,
 	if (!blkg->iostat_cpu)
 		goto err_free;
 
+	if (!blk_get_queue(q))
+		goto err_free;
+
 	blkg->q = q;
 	INIT_LIST_HEAD(&blkg->q_node);
 	spin_lock_init(&blkg->async_bio_lock);