linux-kernel - Re: [PATCH 6/7] regulator: rc5t583: Use devm_regulator

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Date:	Wed, 4 Sep 2013 16:33:32 +0200
From:	Marek Vasut <marex@...x.de>
To:	Sachin Kamat <sachin.kamat@...aro.org>
Cc:	linux-kernel@...r.kernel.org, broonie@...nel.org, nm@...com,
	ldewangan@...dia.com, gg@...mlogic.co.uk, yong.shen@...aro.org,
	s.hauer@...gutronix.de, Nancy.Chen@...escale.com
Subject: Re: [PATCH 6/7] regulator: rc5t583: Use devm_regulator_register

Dear Sachin Kamat,

> devm_* simplifies the code.
> 
> Signed-off-by: Sachin Kamat <sachin.kamat@...aro.org>
> ---
>  drivers/regulator/rc5t583-regulator.c |   22 ++--------------------
>  1 file changed, 2 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/regulator/rc5t583-regulator.c
> b/drivers/regulator/rc5t583-regulator.c index 5885b45..b58affb 100644
> --- a/drivers/regulator/rc5t583-regulator.c
> +++ b/drivers/regulator/rc5t583-regulator.c
> @@ -173,33 +173,16 @@ skip_ext_pwr_config:
>  		config.driver_data = reg;
>  		config.regmap = rc5t583->regmap;
> 
> -		rdev = regulator_register(&ri->desc, &config);
> +		rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
>  		if (IS_ERR(rdev)) {
>  			dev_err(&pdev->dev, "Failed to register regulator %s\n",
>  						ri->desc.name);
> -			ret = PTR_ERR(rdev);
> -			goto clean_exit;
> +			return PTR_ERR(rdev);
>  		}
>  		reg->rdev = rdev;
>  	}
>  	platform_set_drvdata(pdev, regs);
>  	return 0;
> -
> -clean_exit:
> -	while (--id >= 0)
> -		regulator_unregister(regs[id].rdev);
> -
> -	return ret;
> -}
> -
> -static int rc5t583_regulator_remove(struct platform_device *pdev)
> -{
> -	struct rc5t583_regulator *regs = platform_get_drvdata(pdev);
> -	int id;
> -
> -	for (id = 0; id < RC5T583_REGULATOR_MAX; ++id)
> -		regulator_unregister(regs[id].rdev);
> -	return 0;
>  }
> 
>  static struct platform_driver rc5t583_regulator_driver = {
> @@ -208,7 +191,6 @@ static struct platform_driver rc5t583_regulator_driver
> = { .owner	= THIS_MODULE,
>  	},
>  	.probe		= rc5t583_regulator_probe,
> -	.remove		= rc5t583_regulator_remove,
>  };
> 
>  static int __init rc5t583_regulator_init(void)

Next up, you might want to start flipping the regulator drivers to 
module_platform_driver ;-)

Acked-by: Marek Vasut <marex@...x.de>

Best regards,
Marek Vasut
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