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authorChristoph Hellwig <hch@lst.de>2022-09-21 20:04:45 +0200
committerJens Axboe <axboe@kernel.dk>2022-09-26 19:09:31 -0600
commit33dc62796cb657a633050138a86253fb2a553713 (patch)
treef79851f1b4ecb03a3d0475b0982f6cf0e96beb48 /block
parentf168420c62e7a106961f2489a89f6ade84fe3f27 (diff)
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blk-cgroup: fix error unwinding in blkcg_init_queue
When blk_throtl_init fails, we need to call blk_ioprio_exit. Switch to proper goto based unwinding to fix this. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-cgroup.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 869af9d72bcf..3a88f8c011d2 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1297,17 +1297,18 @@ int blkcg_init_queue(struct request_queue *q)
ret = blk_throtl_init(q);
if (ret)
- goto err_destroy_all;
+ goto err_ioprio_exit;
ret = blk_iolatency_init(q);
- if (ret) {
- blk_throtl_exit(q);
- blk_ioprio_exit(q);
- goto err_destroy_all;
- }
+ if (ret)
+ goto err_throtl_exit;
return 0;
+err_throtl_exit:
+ blk_throtl_exit(q);
+err_ioprio_exit:
+ blk_ioprio_exit(q);
err_destroy_all:
blkg_destroy_all(q);
return ret;