linux-kernel - Re: [PATCH 2/2] cgroup: Fix reference count leak when cft->open is NULL

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Message-ID: <1e0bf6e2-37a9-4299-8426-e495f3c43f1d@web.de>
Date: Fri, 18 Jul 2025 14:48:08 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: Zijiang Huang <kerayhuang@...cent.com>, cgroups@...r.kernel.org
Cc: Zijiang Huang <huangzjsmile@...il.com>,
 LKML <linux-kernel@...r.kernel.org>, Hao Peng <flyingpeng@...cent.com>,
 Johannes Weiner <hannes@...xchg.org>, Michal Koutný
 <mkoutny@...e.com>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 2/2] cgroup: Fix reference count leak when cft->open is
 NULL

> When cft->open is NULL, it will cause ctx namespace reference count leak.

Would you like to point out that a reference count should be incremented
in another case?

Regards,
Markus