Re: [PATCH linux-next] drm/gem: Remove the unneeded result variable

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On Wed, 31 Aug 2022, cgel.zte@xxxxxxxxx wrote:
> From: ye xingchen <ye.xingchen@xxxxxxxxxx>
>
> Return the value drm_gem_handle_delete() directly instead of storing it
> in another redundant variable.

Personally, I generally prefer keeping these types of variables, because
they make future changes on the code easier. For example, adding a new
call where you need to check the return value, or having to deal with
the error value right there. Or just adding ad hoc debug logging of the
return value.

Related, but not exactly the same, see commit b784c7707502
("coccinnelle: Remove ptr_ret script"). Adding Cc's from that commit for
input.

BR,
Jani.

> Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
> Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/drm_gem.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
> index ad068865ba20..3fa0deff3014 100644
> --- a/drivers/gpu/drm/drm_gem.c
> +++ b/drivers/gpu/drm/drm_gem.c
> @@ -782,14 +782,11 @@ drm_gem_close_ioctl(struct drm_device *dev, void *data,
>  		    struct drm_file *file_priv)
>  {
>  	struct drm_gem_close *args = data;
> -	int ret;
>  
>  	if (!drm_core_check_feature(dev, DRIVER_GEM))
>  		return -EOPNOTSUPP;
>  
> -	ret = drm_gem_handle_delete(file_priv, args->handle);
> -
> -	return ret;
> +	return drm_gem_handle_delete(file_priv, args->handle);
>  }
>  
>  /**

-- 
Jani Nikula, Intel Open Source Graphics Center



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