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>
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@ -1297,17 +1297,18 @@ int blkcg_init_queue(struct request_queue *q)
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ret = blk_throtl_init(q);
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if (ret)
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goto err_destroy_all;
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goto err_ioprio_exit;
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ret = blk_iolatency_init(q);
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if (ret) {
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blk_throtl_exit(q);
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blk_ioprio_exit(q);
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goto err_destroy_all;
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}
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if (ret)
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goto err_throtl_exit;
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return 0;
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err_throtl_exit:
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blk_throtl_exit(q);
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err_ioprio_exit:
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blk_ioprio_exit(q);
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err_destroy_all:
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blkg_destroy_all(q);
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return ret;
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