From: Tejun Heo <tj@kernel.org> mainline inclusion from mainline-5.4-rc1 commit 3532e7227243beb0b782266dc05c40b6184ad051 category: feature bugzilla: 38688 CVE: NA --------------------------- blk_iocost_init() forgot to free its percpu stat on the error path. Fix it. Fixes: 7caa47151ab2 ("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> Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- block/blk-iocost.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index fd06a7077635d..b542f6581814e 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1877,6 +1877,7 @@ 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; } -- 2.25.1