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Subject[PATCH] blkcg: fix missing free on error path of blk_iocost_init()
blk_iocost_init() forgot to free its percpu stat on the error path.
Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Hillf Danton <hdanton@sina.com>
---
block/blk-iocost.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index f04a4ed1cb45..9c8046ac5925 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1876,6 +1876,7 @@ static int blk_iocost_init(struct request_queue *q)
ret = blkcg_activate_policy(q, &blkcg_policy_iocost);
if (ret) {
rq_qos_del(q, rqos);
+ free_percpu(ioc->pcpu_stat);
kfree(ioc);
return ret;
}
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