linux-kernel - Re: [PATCH v2] platform/x86: int3472: Fix double free of GPIO device during unregister

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Message-Id: <176166944603.2044.3460752500171416214.b4-ty@linux.intel.com>
Date: Tue, 28 Oct 2025 18:37:26 +0200
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Daniel Scally <djrscally@...il.com>, Hans de Goede <hansg@...nel.org>, 
 Qiu Wenbo <qiuwenbo@...me.org>
Cc: Andy Shevchenko <andy@...nel.org>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] platform/x86: int3472: Fix double free of GPIO
 device during unregister

On Tue, 28 Oct 2025 14:30:09 +0800, Qiu Wenbo wrote:

> regulator_unregister() already frees the associated GPIO device. On
> ThinkPad X9 (Lunar Lake), this causes a double free issue that leads to
> random failures when other drivers (typically Intel THC) attempt to
> allocate interrupts. The root cause is that the reference count of the
> pinctrl_intel_platform module unexpectedly drops to zero when this
> driver defers its probe.
> 
> [...]


Thank you for your contribution, it has been applied to my local
review-ilpo-fixes branch. Note it will show up in the public
platform-drivers-x86/review-ilpo-fixes branch only once I've pushed my
local branch there, which might take a while.

The list of commits applied:
[1/1] platform/x86: int3472: Fix double free of GPIO device during unregister
      commit: f0f7a3f542c1698edb69075f25a3f846207facba

--
 i.