linux-kernel - Re: [PATCH 5/7] gpio: tc3589x: remove unnecessary platform_set

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Date:	Tue, 7 May 2013 09:16:03 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Jingoo Han <jg1.han@...sung.com>
Cc:	'Grant Likely' <grant.likely@...retlab.ca>,
	'Linus Walleij' <linus.walleij@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/7] gpio: tc3589x: remove unnecessary
 platform_set_drvdata()

On Mon, 06 May 2013, 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>
> ---
>  drivers/gpio/gpio-tc3589x.c |    1 -
>  1 files changed, 0 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
> index d34d80d..4a5de27 100644
> --- a/drivers/gpio/gpio-tc3589x.c
> +++ b/drivers/gpio/gpio-tc3589x.c
> @@ -407,7 +407,6 @@ static int tc3589x_gpio_remove(struct platform_device *pdev)
>  
>  	free_irq(irq, tc3589x_gpio);
>  
> -	platform_set_drvdata(pdev, NULL);
>  	kfree(tc3589x_gpio);
>  
>  	return 0;

Acked-by: Lee Jones <lee.jones@...aro.org>

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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