linux-kernel - Re: [PATCHv3] regulator: pwm-regulator: Make use of the helper function dev_err

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Date:   Sat, 25 Sep 2021 19:12:28 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Subject: Re: [PATCHv3] regulator: pwm-regulator: Make use of the helper
 function dev_err_probe()

Hi Anand,

On Tue, Sep 21, 2021 at 11:27 PM Anand Moon <linux.amoon@...il.com> wrote:
[...]
> @@ -353,13 +353,8 @@ static int pwm_regulator_probe(struct platform_device *pdev)
>
>         drvdata->pwm = devm_pwm_get(&pdev->dev, NULL);
>         if (IS_ERR(drvdata->pwm)) {
> -               ret = PTR_ERR(drvdata->pwm);
> -               if (ret == -EPROBE_DEFER)
> -                       dev_dbg(&pdev->dev,
> -                               "Failed to get PWM, deferring probe\n");
> -               else
> -                       dev_err(&pdev->dev, "Failed to get PWM: %d\n", ret);
> -               return ret;
> +               return dev_err_probe(&pdev->dev, PTR_ERR(drvdata->pwm),
> +                                    "Failed to get PWM\n");
>         }
>From functional perspective you're patch is looking good now.
I just noticed that the coding-style in the pwm-regulator driver is
not not use any curly brackets for the if block when there's only one
statement

with the curly brackets removed (and if there are no other changes to
this patch) then you can add my:
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>


Best regards,
Martin