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blkcg: fix missing free on error path of blk_iocost_init()

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blk_iocost_init() forgot to free its percpu stat on the error path.
Fix it.

Fixes: 7caa47151a ("blkcg: implement blk-iocost")
Reported-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tejun Heo 2019-08-29 08:53:06 -07:00 committed by Jens Axboe
parent 8d1c1560c3
commit 3532e72272
1 changed files with 1 additions and 0 deletions
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block/blk-iocost.c
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@ -1876,6 +1876,7 @@ static int blk_iocost_init(struct request_queue *q)
ret = blkcg_activate_policy(q, &blkcg_policy_iocost); ret = blkcg_activate_policy(q, &blkcg_policy_iocost);
if (ret) { if (ret) {
rq_qos_del(q, rqos); rq_qos_del(q, rqos);
free_percpu(ioc->pcpu_stat);
kfree(ioc); kfree(ioc);
return ret; return ret;
} }