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blkcg: cosmetic updates to blkg_create() 

* Rename out_* labels to err_*.

* Do ERR_PTR() conversion once in the error return path.

This patch is cosmetic and to prepare for the hierarchy support.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Tejun Heo 2013-01-09 08:05:10 -08:00
parent 86cde6b623
commit 93e6d5d8f5
1 changed files with 7 additions and 8 deletions
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15
block/blk-cgroup.c
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@ -187,16 +187,16 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg,
/* blkg holds a reference to blkcg */
if (!css_tryget(&blkcg->css)) {
blkg = ERR_PTR(-EINVAL);
goto out_free;
ret = -EINVAL;
goto err_free_blkg;
}
/* allocate */
if (!new_blkg) {
new_blkg = blkg_alloc(blkcg, q, GFP_ATOMIC);
if (unlikely(!new_blkg)) {
blkg = ERR_PTR(-ENOMEM);
goto out_put;
ret = -ENOMEM;
goto err_put_css;
}
}
blkg = new_blkg;
@ -213,12 +213,11 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg,
if (!ret)
return blkg;
blkg = ERR_PTR(ret);
out_put:
err_put_css:
css_put(&blkcg->css);
out_free:
err_free_blkg:
blkg_free(new_blkg);
return blkg;
return ERR_PTR(ret);
}
/**