dm multipath: fix missing blk_account_io_done() in error path

hulk inclusion
category: bugfix
bugzilla: 186143, https://gitee.com/openeuler/kernel/issues/I4WC06


CVE: NA

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If precise_iostat is enabled, inflight will be recorded and cleared by
atomic operations. However, for dm multipath, inflight will be recorded
by dm_requeue_original_request(), and if some error happened,
multipath_release_clone() won't clear inflight, which will cause
inflight to leak. Furthermore, %util will always be 100 in iostat.

Fix the problem by calling __blk_mq_end_request() in
multipath_release_clone() instead.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Zhang Wensheng <zhangwensheng5@huawei.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>