linux-kernel - Re: [PATCH 10/19 v3] regulator: s2mps11: Pass descriptor instead of GPIO number

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: <CACRpkdau+=rcyWaL_Ahd9RzcTwk88kKQ-UF_dwzgos60UhnEew@mail.gmail.com>
Date:   Wed, 30 May 2018 09:10:27 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Sangbeom Kim <sbkim73@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Subject: Re: [PATCH 10/19 v3] regulator: s2mps11: Pass descriptor instead of
 GPIO number

On Mon, May 28, 2018 at 2:26 PM, Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
> On Mon, May 28, 2018 at 2:29 PM, Bartlomiej Zolnierkiewicz
> <b.zolnierkie@...sung.com> wrote:
>
>> -       s2mps11->ext_control_gpiod = devm_kmalloc(&pdev->dev,
>> +       s2mps11->ext_control_gpiod = devm_kzalloc(&pdev->dev,
>>                         sizeof(*s2mps11->ext_control_gpiod) * rdev_num,
>>                         GFP_KERNEL);
>
> devm_kcalloc() I would rather use.

The patch replace kmalloc with kzalloc amd kcalloc does not initialize
memory to zero.

We don't have demv_kzcalloc() I'm afraid, I wonder it even makes
sense to add?

Yours,
Linus Walleij