linux-kernel - Re: [PATCH] input: mtk-pmic-keys: Fix potential NULL pointer dereference in probe()

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Message-ID: <316d6242-fbfa-4c9e-addd-e9f76facf9d7@web.de>
Date: Wed, 10 Dec 2025 15:11:03 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: vulab@...as.ac.cn, linux-input@...r.kernel.org,
 linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org
Cc: LKML <linux-kernel@...r.kernel.org>,
 Angelo Gioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>,
 Gary Bisson <bisson.gary@...il.com>,
 Julien Massot <julien.massot@...labora.com>,
 Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>,
 Matthias Brugger <matthias.bgg@...il.com>
Subject: Re: [PATCH] input: mtk-pmic-keys: Fix potential NULL pointer
 dereference in probe()

> of_match_device() may return NULL when the device node
> does not match any entry in the driver's match table.
> The current code dereferences of_id->data unconditionally,
> which can lead to a NULL pointer dereference.
…

Under which circumstances would you get into the mood to take more desirable
word wrap preferences better into account?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.18#n658

Regards,
Markus