linux-kernel - Re: [PATCH] cgroup: fix potential null pointer risk

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Message-ID: <CANubcdX7rvnWPd6BfLsHpchxCtmbg67mARHQbJXgpr6Ezkm1jQ@mail.gmail.com>
Date:   Wed, 18 May 2022 09:04:12 +0800
From:   Stephen Zhang <starzhangzsd@...il.com>
To:     Tejun Heo <tj@...nel.org>
Cc:     lizefan.x@...edance.com, hannes@...xchg.org,
        zhangshida <zhangshida@...inos.cn>, linux-kernel@...r.kernel.org,
        cgroups@...r.kernel.org
Subject: Re: [PATCH] cgroup: fix potential null pointer risk

Tejun Heo <tj@...nel.org> 于2022年5月18日周三 01:07写道：
>
> The function is never called for a root cgroup. The parent check up above in
> the same function is superflous. So, maybe remove that?
>
> Thanks.
>
> --
> tejun

Thanks. I will remake a patch based on this.


--
Stephen