linux-kernel - Re: [PATCH v2] NFC: trf7970a: disable all regulators on removal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <8d30868b-9870-4b17-b471-263156f5ab9e@kernel.org>
Date: Thu, 18 Apr 2024 22:49:12 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Paul Geurts <paul_geurts@...e.nl>, mgreer@...malcreek.com,
 linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] NFC: trf7970a: disable all regulators on removal

On 18/04/2024 21:25, Paul Geurts wrote:
> During module probe, regulator 'vin' and 'vdd-io' are used and enabled,
> but the vdd-io regulator overwrites the 'vin' regulator pointer. During
> remove, only the vdd-io is disabled, as the vin regulator pointer is not
> available anymore. When regulator_put() is called during resource
> cleanup a kernel warning is given, as the regulator is still enabled.
> 
> Store the two regulators in separate pointers and disable both the
> regulators on module remove.
> 
> Fixes: 49d22c70aaf0 ("NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage")
> Signed-off-by: Paul Geurts <paul_geurts@...e.nl>

This is a friendly reminder during the review process.

It looks like you received a tag and forgot to add it.

If you do not know the process, here is a short explanation:
Please add Acked-by/Reviewed-by/Tested-by tags when posting new
versions, under or above your Signed-off-by tag. Tag is "received", when
provided in a message replied to you on the mailing list. Tools like b4
can help here. However, there's no need to repost patches *only* to add
the tags. The upstream maintainer will do that for tags received on the
version they apply.

https://elixir.bootlin.com/linux/v6.5-rc3/source/Documentation/process/submitting-patches.rst#L577

If a tag was not added on purpose, please state why and what changed.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof