linux-kernel - Re: [PATCH 1/3] ARM: at91/tclib: prefer using of devm

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Date:	Wed, 20 Aug 2014 10:19:46 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	Gaël PORTAY <gael.portay@...il.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-pwm@...r.kernel.org, Nicolas Ferre <nicolas.ferre@...el.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Subject: Re: [PATCH 1/3] ARM: at91/tclib: prefer using of devm_* functions

On Wed, 20 Aug 2014 00:07:50 +0200
Gaël PORTAY <gael.portay@...il.com> wrote:

> Signed-off-by: Gaël PORTAY <gael.portay@...il.com>

Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>

> ---
>  drivers/misc/atmel_tclib.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c
> index c8d8e38..b514a2d 100644
> --- a/drivers/misc/atmel_tclib.c
> +++ b/drivers/misc/atmel_tclib.c
> @@ -150,17 +150,15 @@ static int __init tc_probe(struct platform_device *pdev)
>  	if (irq < 0)
>  		return -EINVAL;
>  
> -	tc = kzalloc(sizeof(struct atmel_tc), GFP_KERNEL);
> +	tc = devm_kzalloc(&pdev->dev, sizeof(struct atmel_tc), GFP_KERNEL);
>  	if (!tc)
>  		return -ENOMEM;
>  
>  	tc->pdev = pdev;
>  
> -	clk = clk_get(&pdev->dev, "t0_clk");
> -	if (IS_ERR(clk)) {
> -		kfree(tc);
> -		return -EINVAL;
> -	}
> +	clk = devm_clk_get(&pdev->dev, "t0_clk");
> +	if (IS_ERR(clk))
> +		return PTR_ERR(clk);
>  
>  	/* Now take SoC information if available */
>  	if (pdev->dev.of_node) {
> @@ -171,10 +169,10 @@ static int __init tc_probe(struct platform_device *pdev)
>  	}
>  
>  	tc->clk[0] = clk;
> -	tc->clk[1] = clk_get(&pdev->dev, "t1_clk");
> +	tc->clk[1] = devm_clk_get(&pdev->dev, "t1_clk");
>  	if (IS_ERR(tc->clk[1]))
>  		tc->clk[1] = clk;
> -	tc->clk[2] = clk_get(&pdev->dev, "t2_clk");
> +	tc->clk[2] = devm_clk_get(&pdev->dev, "t2_clk");
>  	if (IS_ERR(tc->clk[2]))
>  		tc->clk[2] = clk;
>  



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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