linux-kernel - Re: [PATCH] pinctrl: renesas: rzt2h: Fix device node leak in rzt2h_gpio

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Message-ID: <83b45da4-53d7-4fb3-8099-77ad7f6bf5c0@web.de>
Date: Tue, 27 Jan 2026 09:43:12 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Felix Gu <ustc.gu@...il.com>, linux-renesas-soc@...r.kernel.org,
 linux-gpio@...r.kernel.org
Cc: LKML <linux-kernel@...r.kernel.org>,
 Geert Uytterhoeven <geert+renesas@...der.be>,
 Jianhao Xu <jianhao.xu@....edu.cn>, Linus Walleij <linusw@...nel.org>,
 Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
 Thierry Bultel <thierry.bultel.yh@...renesas.com>,
 Zilin Guan <zilin@....edu.cn>
Subject: Re: [PATCH] pinctrl: renesas: rzt2h: Fix device node leak in
 rzt2h_gpio_register()

…
> In rzt2h_gpio_register(), the driver fails to call of_node_put() to
> release the reference in of_args.np, which causes a memory leak.
…

                                                      reference count?

* Were any source code analysis tools involved here?

* See also once more:
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/stable-kernel-rules.rst?h=v6.19-rc7#n34


Regards,
Markus