linux-kernel - Re: [PATCH] power: supply: Simplify memory allocation

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Message-ID: <20220211185023.rlfriafztikcqdmq@mercury.elektranox.org>
Date:   Fri, 11 Feb 2022 19:50:23 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH] power: supply: Simplify memory allocation

Hi,

On Sat, Feb 05, 2022 at 05:40:57PM +0100, Christophe JAILLET wrote:
> Use devm_bitmap_zalloc() instead of hand writing it.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---

Thanks, queued.

-- Sebastian

>  drivers/power/supply/power_supply_hwmon.c | 15 +++------------
>  1 file changed, 3 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/power/supply/power_supply_hwmon.c b/drivers/power/supply/power_supply_hwmon.c
> index bffe6d84c429..a48aa4afb828 100644
> --- a/drivers/power/supply/power_supply_hwmon.c
> +++ b/drivers/power/supply/power_supply_hwmon.c
> @@ -324,11 +324,6 @@ static const struct hwmon_chip_info power_supply_hwmon_chip_info = {
>  	.info = power_supply_hwmon_info,
>  };
>  
> -static void power_supply_hwmon_bitmap_free(void *data)
> -{
> -	bitmap_free(data);
> -}
> -
>  int power_supply_add_hwmon_sysfs(struct power_supply *psy)
>  {
>  	const struct power_supply_desc *desc = psy->desc;
> @@ -349,18 +344,14 @@ int power_supply_add_hwmon_sysfs(struct power_supply *psy)
>  	}
>  
>  	psyhw->psy = psy;
> -	psyhw->props = bitmap_zalloc(POWER_SUPPLY_PROP_TIME_TO_FULL_AVG + 1,
> -				     GFP_KERNEL);
> +	psyhw->props = devm_bitmap_zalloc(dev,
> +					  POWER_SUPPLY_PROP_TIME_TO_FULL_AVG + 1,
> +					  GFP_KERNEL);
>  	if (!psyhw->props) {
>  		ret = -ENOMEM;
>  		goto error;
>  	}
>  
> -	ret = devm_add_action_or_reset(dev, power_supply_hwmon_bitmap_free,
> -			      psyhw->props);
> -	if (ret)
> -		goto error;
> -
>  	for (i = 0; i < desc->num_properties; i++) {
>  		const enum power_supply_property prop = desc->properties[i];
>  
> -- 
> 2.32.0
> 

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