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blk-mq: improve error handling in blk_mq_alloc_rq_map() 

Use goto-style error handling like we do elsewhere in the kernel.

Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Link: https://lore.kernel.org/r/bbbc2d9b17b137798c7fb92042141ca4cbbc58cc.1667356813.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jinlong Chen 2022-11-02 10:52:29 +08:00 committed by Jens Axboe
parent 98d81f0df7
commit 7edfd68165
1 changed files with 10 additions and 9 deletions
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19
block/blk-mq.c
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@ -3305,21 +3305,22 @@ static struct blk_mq_tags *blk_mq_alloc_rq_map(struct blk_mq_tag_set *set,
tags->rqs = kcalloc_node(nr_tags, sizeof(struct request *),
GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
node);
if (!tags->rqs) {
blk_mq_free_tags(tags);
return NULL;
}
if (!tags->rqs)
goto err_free_tags;
tags->static_rqs = kcalloc_node(nr_tags, sizeof(struct request *),
GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
node);
if (!tags->static_rqs) {
kfree(tags->rqs);
blk_mq_free_tags(tags);
return NULL;
}
if (!tags->static_rqs)
goto err_free_rqs;
return tags;
err_free_rqs:
kfree(tags->rqs);
err_free_tags:
blk_mq_free_tags(tags);
return NULL;
}
static int blk_mq_init_request(struct blk_mq_tag_set *set, struct request *rq,