linux-kernel - Re: [PATCH 2/4] pinctrl: mxs: remove unnecessary platform_set

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Date:	Mon, 6 May 2013 16:48:30 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Jingoo Han <jg1.han@...sung.com>
CC:	'Linus Walleij' <linus.walleij@...aro.org>,
	<linux-kernel@...r.kernel.org>,
	'Fabio Estevam' <fabio.estevam@...escale.com>
Subject: Re: [PATCH 2/4] pinctrl: mxs: remove unnecessary
 platform_set_drvdata()

On Mon, May 06, 2013 at 12:42:13PM +0900, Jingoo Han wrote:
> The driver core clears the driver data to NULL after device_release
> or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
> (device-core: Ensure drvdata = NULL when no driver is bound).
> Thus, it is not needed to manually clear the device driver data to NULL.
> 
> Signed-off-by: Jingoo Han <jg1.han@...sung.com>

Acked-by: Shawn Guo <shawn.guo@...aro.org>

> ---
>  drivers/pinctrl/pinctrl-mxs.c |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c
> index b45c4eb..f5d5643 100644
> --- a/drivers/pinctrl/pinctrl-mxs.c
> +++ b/drivers/pinctrl/pinctrl-mxs.c
> @@ -515,7 +515,6 @@ int mxs_pinctrl_probe(struct platform_device *pdev,
>  	return 0;
>  
>  err:
> -	platform_set_drvdata(pdev, NULL);
>  	iounmap(d->base);
>  	return ret;
>  }
> @@ -525,7 +524,6 @@ int mxs_pinctrl_remove(struct platform_device *pdev)
>  {
>  	struct mxs_pinctrl_data *d = platform_get_drvdata(pdev);
>  
> -	platform_set_drvdata(pdev, NULL);
>  	pinctrl_unregister(d->pctl);
>  	iounmap(d->base);
>  
> -- 
> 1.7.2.5
> 
> 

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