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SubjectRe: [PATCH 03/12] blkcg: cosmetic updates to blkg_create()
On Fri, Dec 14, 2012 at 02:41:16PM -0800, Tejun Heo wrote:
> * 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>

Vivek

> ---
> block/blk-cgroup.c | 15 +++++++--------
> 1 file changed, 7 insertions(+), 8 deletions(-)
>
> diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
> index ffbd237..fde2286 100644
> --- a/block/blk-cgroup.c
> +++ b/block/blk-cgroup.c
> @@ -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);
> }
>
> /**
> --
> 1.7.11.7


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