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block, bfq: fix error handle in bfq_init
author
weiping zhang
<zhangweiping@didichuxing.com>
Fri, 18 Aug 2017 16:37:20 +0000
(
00:37
+0800)
committer
Jens Axboe
<axboe@kernel.dk>
Wed, 23 Aug 2017 21:35:54 +0000
(15:35 -0600)
if elv_register fail, bfq_pool should be free.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/bfq-iosched.c
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diff --git
a/block/bfq-iosched.c
b/block/bfq-iosched.c
index
509f399
..
ea2832b
100644
(file)
--- a/
block/bfq-iosched.c
+++ b/
block/bfq-iosched.c
@@
-5062,10
+5062,12
@@
static int __init bfq_init(void)
ret = elv_register(&iosched_bfq_mq);
if (ret)
- goto
err_pol_unreg
;
+ goto
slab_kill
;
return 0;
+slab_kill:
+ bfq_slab_kill();
err_pol_unreg:
#ifdef CONFIG_BFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_bfq);