linux-kernel - Re: [PATCH 08/21] drm/etnaviv: remove check for return value of drm

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Message-ID: <a965d97ddf99d4a335582732dfac7b0948258632.camel@pengutronix.de>
Date:   Thu, 27 Feb 2020 14:36:40 +0100
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Wambui Karuga <wambui.karugax@...il.com>, daniel@...ll.ch,
        airlied@...ux.ie, Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>
Cc:     linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
        etnaviv@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 08/21] drm/etnaviv: remove check for return value of
 drm_debugfs function

On Do, 2020-02-27 at 15:02 +0300, Wambui Karuga wrote:
> Since commit 987d65d01356 (drm: debugfs: make
> drm_debugfs_create_files() never fail), drm_debugfs_create_file only
> returns 0, and there is no need to check the return value.
> This change therefore removes the check and error handling in
> etnaviv_debugfs_init() and also makes the function return void.
> 
> Signed-off-by: Wambui Karuga <wambui.karugax@...il.com>

Reviewed-by: Lucas Stach <l.stach@...gutronix.de>

> ---
>  drivers/gpu/drm/etnaviv/etnaviv_drv.c | 18 ++++--------------
>  1 file changed, 4 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index 6b43c1c94e8f..a39735316ca5 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -231,21 +231,11 @@ static struct drm_info_list etnaviv_debugfs_list[] = {
>  		{"ring", show_each_gpu, 0, etnaviv_ring_show},
>  };
>  
> -static int etnaviv_debugfs_init(struct drm_minor *minor)
> +static void etnaviv_debugfs_init(struct drm_minor *minor)
>  {
> -	struct drm_device *dev = minor->dev;
> -	int ret;
> -
> -	ret = drm_debugfs_create_files(etnaviv_debugfs_list,
> -			ARRAY_SIZE(etnaviv_debugfs_list),
> -			minor->debugfs_root, minor);
> -
> -	if (ret) {
> -		dev_err(dev->dev, "could not install etnaviv_debugfs_list\n");
> -		return ret;
> -	}
> -
> -	return ret;
> +	drm_debugfs_create_files(etnaviv_debugfs_list,
> +				 ARRAY_SIZE(etnaviv_debugfs_list),
> +				 minor->debugfs_root, minor);
>  }
>  #endif
>