Re: [PATCH v2 14/16] backlight: drop backlight_put()

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On Sun, May 17, 2020 at 09:01:37PM +0200, Sam Ravnborg wrote:
> There are no external users of backlight_put().
> Drop it and open code the two users in backlight.c.
> 
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Lee Jones <lee.jones@xxxxxxxxxx>
> Cc: Daniel Thompson <daniel.thompson@xxxxxxxxxx>
> Cc: Jingoo Han <jingoohan1@xxxxxxxxx>

Reviewed-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>


> ---
>  drivers/video/backlight/backlight.c |  7 +++++--
>  include/linux/backlight.h           | 10 ----------
>  2 files changed, 5 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
> index e23b09d03a65..7f3eecaf8317 100644
> --- a/drivers/video/backlight/backlight.c
> +++ b/drivers/video/backlight/backlight.c
> @@ -679,7 +679,10 @@ static struct backlight_device *of_find_backlight(struct device *dev)
>  
>  static void devm_backlight_release(void *data)
>  {
> -	backlight_put(data);
> +	struct backlight_device *bd = data;
> +
> +	if (bd)
> +		put_device(&bd->dev);
>  }
>  
>  /**
> @@ -707,7 +710,7 @@ struct backlight_device *devm_of_find_backlight(struct device *dev)
>  		return bd;
>  	ret = devm_add_action(dev, devm_backlight_release, bd);
>  	if (ret) {
> -		backlight_put(bd);
> +		put_device(&bd->dev);
>  		return ERR_PTR(ret);
>  	}
>  	return bd;
> diff --git a/include/linux/backlight.h b/include/linux/backlight.h
> index 99e7cdace2be..d92e523650ec 100644
> --- a/include/linux/backlight.h
> +++ b/include/linux/backlight.h
> @@ -415,16 +415,6 @@ static inline int backlight_disable(struct backlight_device *bd)
>  	return backlight_update_status(bd);
>  }
>  
> -/**
> - * backlight_put - Drop backlight reference
> - * @bd: the backlight device to put
> - */
> -static inline void backlight_put(struct backlight_device *bd)
> -{
> -	if (bd)
> -		put_device(&bd->dev);
> -}
> -
>  /**
>   * backlight_is_blank - Return true if display is expected to be blank
>   * @bd: the backlight device
> -- 
> 2.25.1
> 
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