linux-kernel - Re: [PATCH 1/2] cgroups: Fix to return errno in a failure path

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Date:	Tue, 26 Jan 2010 15:01:26 -0800
From:	Paul Menage <menage@...gle.com>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"containers@...ts.osdl.org" <containers@...ts.osdl.org>
Subject: Re: [PATCH 1/2] cgroups: Fix to return errno in a failure path

On Tue, Jan 26, 2010 at 12:16 AM, Li Zefan <lizf@...fujitsu.com> wrote:
>
> Signed-off-by: Li Zefan <lizf@...fujitsu.com>

Acked-by: Paul Menage <menage@...gle.com>

> ---
>  cgroup.c |    7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
>
> --- a/kernel/cgroup.c.orig      2010-01-19 16:37:37.000000000 +0800
> +++ a/kernel/cgroup.c   2010-01-19 16:39:07.000000000 +0800
> @@ -3279,14 +3279,17 @@ static long cgroup_create(struct cgroup
>
>        for_each_subsys(root, ss) {
>                struct cgroup_subsys_state *css = ss->create(ss, cgrp);
> +
>                if (IS_ERR(css)) {
>                        err = PTR_ERR(css);
>                        goto err_destroy;
>                }
>                init_cgroup_css(css, ss, cgrp);
> -               if (ss->use_id)
> -                       if (alloc_css_id(ss, parent, cgrp))
> +               if (ss->use_id) {
> +                       err = alloc_css_id(ss, parent, cgrp);
> +                       if (err)
>                                goto err_destroy;
> +               }
>                /* At error, ->destroy() callback has to free assigned ID. */
>        }
>
>
--
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