Re: [PATCH 04/13] drm/cirrus: Remove unecessary NULL check in gem_free

[Ian Romanick <idr@freedesktop.org>]

On 04/05/2014 02:44 AM, Daniel Vetter wrote:
> The ->gem_free_object never gets called with a NULL pointer, the check
> is redundant. Also checking after the upcast allows compilers to elide
> it anyway.
> 
> Spotted by coverity.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Same as MGA change.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

> ---
>  drivers/gpu/drm/cirrus/cirrus_main.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
> index b119f66fed92..99c1983f99d2 100644
> --- a/drivers/gpu/drm/cirrus/cirrus_main.c
> +++ b/drivers/gpu/drm/cirrus/cirrus_main.c
> @@ -271,8 +271,6 @@ void cirrus_gem_free_object(struct drm_gem_object *obj)
>  {
>  	struct cirrus_bo *cirrus_bo = gem_to_cirrus_bo(obj);
>  
> -	if (!cirrus_bo)
> -		return;
>  	cirrus_bo_unref(&cirrus_bo);
>  }
>  
>