linux-kernel - Re: [PATCH] iio: adc: meson-saradc: check for devm

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Message-ID: <CAFBinCAXt1GPFMptVXrGYi-TsgSxSyNqeWFuz=B=vWV3c1+zwA@mail.gmail.com>
Date:   Thu, 22 Nov 2018 22:44:55 +0100
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     hofrat@...dl.org, jic23@...nel.org
Cc:     knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
        carlo@...one.org, khilman@...libre.com, yixun.lan@...ogic.com,
        xingyu.chen@...ogic.com, gregkh@...uxfoundation.org,
        dan.carpenter@...cle.com, linux-iio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iio: adc: meson-saradc: check for devm_kasprintf failure

On Thu, Nov 22, 2018 at 8:52 AM Nicholas Mc Guire <hofrat@...dl.org> wrote:
>
> devm_kasprintf() may return NULL on failure of internal allocation thus
> the assignments to  init.name  are not safe if not checked. On error
> meson_sar_adc_clk_init() returns negative values so -ENOMEM in the
> (unlikely) failure case of devm_kasprintf() should be fine here.
>
> Signed-off-by: Nicholas Mc Guire <hofrat@...dl.org>
> Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs")
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

thank you for the patch!
I tested the non-error case on my Odroid-C1 and it still works fine.


Regards
Martin