linux-kernel - Re: [PATCH v2 2/2] pwm:sunplus-pwm:Add Sunplus SoC PWM Driver

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Date:   Tue, 8 Mar 2022 16:44:29 +0100
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     hammer hsieh <hammerh0314@...il.com>
Cc:     linux-pwm@...r.kernel.org, wells.lu@...plus.com,
        devicetree@...r.kernel.org,
        "hammer.hsieh" <hammer.hsieh@...plus.com>,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        thierry.reding@...il.com, kernel@...gutronix.de,
        lee.jones@...aro.org
Subject: Re: [PATCH v2 2/2] pwm:sunplus-pwm:Add Sunplus SoC PWM Driver

Hello,

On Tue, Mar 08, 2022 at 08:03:55PM +0800, hammer hsieh wrote:
> > IMHO yes. (Though the most likely error -ENOMEM, in this case no error
> > message should be emitted.)
> >
> 
>  ok, will add error message like below.
>         if (ret < 0) {
>                 dev_err(dev, "failed to release clock: %d\n", ret);
>                 return ret;
>         }
> or should i modify like
>         if (ret < 0) {
>                 dev_err(dev, "failed to release clock: %d\n", ret);
>                 return ERR_PTR(ret);
>         }
> i didn't find reference code for it, not sure which one is better?

It depends if you return a pointer or an int. Also please make use of
%pe instead of %d for error codes to make it easier to understand.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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