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

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Date:	Tue, 7 Jan 2014 07:36:14 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Joe Perches <joe@...ches.com>
CC:	"thierry.reding@...il.com" <thierry.reding@...il.com>,
	"linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] pwm: core: Use devm_kzalloc instead of kzalloc


> > 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.
> 

Yes, I will use it.

Thanks,

 

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