linux-kernel - Re: [PATCH] mfd: macsmc: Initialize mutex

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Message-ID: <82605ddd-d0d8-4449-8bb9-9f94b2bde734@kernel.org>
Date: Wed, 8 Oct 2025 16:20:57 +0200
From: Sven Peter <sven@...nel.org>
To: Janne Grunau <j@...nau.net>, Neal Gompa <neal@...pa.dev>,
 Lee Jones <lee@...nel.org>
Cc: asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: macsmc: Initialize mutex

On 25.09.25 22:33, Janne Grunau wrote:
> Struct apple_smc's mutex was not initialized before use. Surprisingly
> this only resulted in occasional NULL pointer dereferences in
> apple_smc_read() calls from the probe() functions of sub devices.
> 
> Fixes: e038d985c9823 ("mfd: Add Apple Silicon System Management Controller")
> Signed-off-by: Janne Grunau <j@...nau.net>
> ---

Reviewed-by: Sven Peter <sven@...nel.org>


Thanks,


Sven