linux-kernel - Re: [PATCH 1/1] thermal: int3403: Delete a check before thermal_zone_device

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Date:	Mon, 08 Dec 2014 12:15:03 +0800
From:	Zhang Rui <rui.zhang@...el.com>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	Eduardo Valentin <edubezval@...il.com>, linux-pm@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 1/1] thermal: int3403: Delete a check before
 thermal_zone_device_unregister()

On Mon, 2014-12-01 at 05:50 +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Mon, 1 Dec 2014 05:45:42 +0100
> 
> The thermal_zone_device_unregister() function tests whether its argument
> is NULL and then returns immediately. Thus the test around the call
> is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>

applied.

thanks,
rui
> ---
>  drivers/thermal/int340x_thermal/int3403_thermal.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/thermal/int340x_thermal/int3403_thermal.c b/drivers/thermal/int340x_thermal/int3403_thermal.c
> index 6e9fb62..790b8f6 100644
> --- a/drivers/thermal/int340x_thermal/int3403_thermal.c
> +++ b/drivers/thermal/int340x_thermal/int3403_thermal.c
> @@ -293,8 +293,7 @@ static int int3403_sensor_add(struct int3403_priv *priv)
>  	return 0;
>  
>   err_free_obj:
> -	if (obj->tzone)
> -		thermal_zone_device_unregister(obj->tzone);
> +	thermal_zone_device_unregister(obj->tzone);
>  	return result;
>  }
>  


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