linux-kernel - Re: [PATCH] pwm: core: Use devm

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Date:	Mon, 06 Jan 2014 23:14:30 -0800
From:	Joe Perches <joe@...ches.com>
To:	Xiubo Li <Li.Xiubo@...escale.com>
Cc:	thierry.reding@...il.com, linux-pwm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pwm: core: Use devm_kzalloc instead of kzalloc

On Tue, 2014-01-07 at 14:05 +0800, Xiubo Li wrote:
> Use devm_kzalloc instead of kzalloc to free automatically and make
> the cleanup paths simpler and the code slightly shorter.
[]
> diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
[]
> @@ -245,7 +244,9 @@ int pwmchip_add(struct pwm_chip *chip)
>  	if (ret < 0)
>  		goto out;
>  
> -	chip->pwms = kzalloc(chip->npwm * sizeof(*pwm), GFP_KERNEL);
> +	chip->pwms = devm_kzalloc(chip->dev,
> +				  chip->npwm * sizeof(*pwm),
> +				  GFP_KERNEL);

There is a devm_kcalloc and this should likely use it.


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