blk-mq: fix abnormal free in single queue process

hulk inclusion
category: bugfix
bugzilla: 185922, https://gitee.com/openeuler/kernel/issues/I4NDPF
CVE: NA

--------------------------------

fix the problem introduced by commit 80086651 ("blk: Fix
lock inversion between ioc lock and bfqd lock"), which lead to
blk_queue_bio using blk_mq_free_request to free abnormally.

fix the problem using __blk_put_request to replace it.

Fixes: 80086651 ("blk: Fix lock inversion between ioc lock and bfqd lock")
Signed-off-by: NZhang Wensheng <zhangwensheng5@huawei.com>
Reviewed-by: NLaibin Qiu <qiulaibin@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

block/blk-mq.h

@@ -228,7 +228,7 @@ static inline void blk_mq_free_requests(struct list_head *list)
 		struct request *rq = list_entry_rq(list->next);
 
 		list_del_init(&rq->queuelist);
-		blk_mq_free_request(rq);
+		__blk_put_request(rq->q, rq);
 	}
 }