linux-kernel - Re: [PATCH] t7l66xb: properly free clk32k clock source

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Date:	Fri, 2 Jul 2010 17:16:40 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Magnus Damm <damm@...nsource.se>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	Julia Lawall <julia@...u.dk>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH] t7l66xb: properly free clk32k clock source

Hi Alex,

On Thu, Jul 01, 2010 at 05:43:50PM +0800, Axel Lin wrote:
> This patch includes below fixes to properly free clk32k clock source:
> 1. remove a redundant clk_put in t7l66xb_probe error path
> 2. add missing clk_disable(t7l66xb->clk32k) and clk_put(t7l66xb->clk32k)
>    to properly free the clock source.
Patch applied to my for-next branch. This almost looks like 2.6.35 material
though.

Cheers,
Samuel.


> Signed-off-by: Axel Lin <axel.lin@...il.com>
> ---
>  drivers/mfd/t7l66xb.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
> index 5041d33..006c121 100644
> --- a/drivers/mfd/t7l66xb.c
> +++ b/drivers/mfd/t7l66xb.c
> @@ -350,7 +350,6 @@ static int t7l66xb_probe(struct platform_device *dev)
>  	t7l66xb->clk48m = clk_get(&dev->dev, "CLK_CK48M");
>  	if (IS_ERR(t7l66xb->clk48m)) {
>  		ret = PTR_ERR(t7l66xb->clk48m);
> -		clk_put(t7l66xb->clk32k);
>  		goto err_clk48m_get;
>  	}
>  
> @@ -425,6 +424,8 @@ static int t7l66xb_remove(struct platform_device *dev)
>  	ret = pdata->disable(dev);
>  	clk_disable(t7l66xb->clk48m);
>  	clk_put(t7l66xb->clk48m);
> +	clk_disable(t7l66xb->clk32k);
> +	clk_put(t7l66xb->clk32k);
>  	t7l66xb_detach_irq(dev);
>  	iounmap(t7l66xb->scr);
>  	release_resource(&t7l66xb->rscr);
> -- 
> 1.5.4.3
> 
> 
> 

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