linux-kernel - Re: [PATCH v2] rtc: gamecube: Check the return value of ioremap()

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Message-ID: <176523152355.342815.11295174896709907592.b4-ty@bootlin.com>
Date: Mon, 8 Dec 2025 23:10:18 +0100
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Haotian Zhang <vulab@...as.ac.cn>
Cc: linkmauve@...kmauve.fr, linux-rtc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] rtc: gamecube: Check the return value of ioremap()

On Wed, 26 Nov 2025 16:06:25 +0800, Haotian Zhang wrote:
> The function ioremap() in gamecube_rtc_read_offset_from_sram() can fail
> and return NULL, which is dereferenced without checking, leading to a
> NULL pointer dereference.
> 
> Add a check for the return value of ioremap() and return -ENOMEM on
> failure.
> 
> [...]

Applied, thanks!

[1/1] rtc: gamecube: Check the return value of ioremap()
      https://git.kernel.org/abelloni/c/d1220e47e4bd

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com