linux-kernel - Re: [PATCH v2 15/17] power: supply: olpc_battery: Use devm_power_supply

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Message-ID: <20181205205800.dqg3airnnvmzduyl@earth.universe>
Date:   Wed, 5 Dec 2018 21:58:00 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Lubomir Rintel <lkundrak@...sk>
Cc:     Mark Brown <broonie@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        James Cameron <quozl@...top.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Eric Miao <eric.y.miao@...il.com>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Daniel Mack <daniel@...que.org>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        platform-driver-x86@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH v2 15/17] power: supply: olpc_battery: Use
 devm_power_supply_register()

Hi,

On Fri, Nov 16, 2018 at 05:24:01PM +0100, Lubomir Rintel wrote:
> This simplifies the error handling.
> 
> Signed-off-by: Lubomir Rintel <lkundrak@...sk>
> 
> ---

Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>

-- Sebastian

> Changes since v1:
> - This was split off the "power: supply: olpc_battery: Move priv data to
>   a struct" patch.
> 
>  drivers/power/supply/olpc_battery.c | 19 +++++--------------
>  1 file changed, 5 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c
> index b091f897c1d4..4433eb10a23d 100644
> --- a/drivers/power/supply/olpc_battery.c
> +++ b/drivers/power/supply/olpc_battery.c
> @@ -628,7 +628,7 @@ static int olpc_battery_probe(struct platform_device *pdev)
>  	psy_cfg.of_node = pdev->dev.of_node;
>  	psy_cfg.drv_data = data;
>  
> -	data->olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, &psy_cfg);
> +	data->olpc_ac = devm_power_supply_register(&pdev->dev, &olpc_ac_desc, &psy_cfg);
>  	if (IS_ERR(data->olpc_ac))
>  		return PTR_ERR(data->olpc_ac);
>  
> @@ -643,15 +643,13 @@ static int olpc_battery_probe(struct platform_device *pdev)
>  		olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
>  	}
>  
> -	data->olpc_bat = power_supply_register(&pdev->dev, &olpc_bat_desc, &psy_cfg);
> -	if (IS_ERR(olpc_bat)) {
> -		ret = PTR_ERR(olpc_bat);
> -		goto battery_failed;
> -	}
> +	data->olpc_bat = devm_power_supply_register(&pdev->dev, &olpc_bat_desc, &psy_cfg);
> +	if (IS_ERR(data->olpc_bat))
> +		return PTR_ERR(data->olpc_bat);
>  
>  	ret = device_create_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
>  	if (ret)
> -		goto eeprom_failed;
> +		return ret;
>  
>  	ret = device_create_file(&data->olpc_bat->dev, &olpc_bat_error);
>  	if (ret)
> @@ -666,10 +664,6 @@ static int olpc_battery_probe(struct platform_device *pdev)
>  
>  error_failed:
>  	device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
> -eeprom_failed:
> -	power_supply_unregister(data->olpc_bat);
> -battery_failed:
> -	power_supply_unregister(data->olpc_ac);
>  	return ret;
>  }
>  
> @@ -679,9 +673,6 @@ static int olpc_battery_remove(struct platform_device *pdev)
>  
>  	device_remove_file(&data->olpc_bat->dev, &olpc_bat_error);
>  	device_remove_bin_file(&data->olpc_bat->dev, &olpc_bat_eeprom);
> -	power_supply_unregister(data->olpc_bat);
> -	power_supply_unregister(data->olpc_ac);
> -
>  	return 0;
>  }
>  
> -- 
> 2.19.1
> 

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