linux-kernel - Re: [PATCH 1/1] GPU-DRM-MSM: Deletion of unnecessary checks before two function calls

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Message-ID: <CAF6AEGt+tgWjYydTUv+5L2d1r8EMKWhOv=j=T8eoHEOkm8Cciw@mail.gmail.com>
Date:	Mon, 1 Dec 2014 11:14:35 -0500
From:	Rob Clark <robdclark@...il.com>
To:	SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:	David Airlie <airlied@...ux.ie>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH 1/1] GPU-DRM-MSM: Deletion of unnecessary checks before
 two function calls

btw, I have these two queued up on msm-next, thanks

BR,
-R

On Tue, Nov 25, 2014 at 8:33 AM, SF Markus Elfring
<elfring@...rs.sourceforge.net> wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Tue, 25 Nov 2014 14:30:28 +0100
>
> The functions framebuffer_release() and vunmap() perform also input
> parameter validation. 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>
> ---
>  drivers/gpu/drm/msm/msm_fbdev.c | 3 +--
>  drivers/gpu/drm/msm/msm_gem.c   | 3 +--
>  2 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
> index ab5bfd2..fd5a6f3 100644
> --- a/drivers/gpu/drm/msm/msm_fbdev.c
> +++ b/drivers/gpu/drm/msm/msm_fbdev.c
> @@ -193,8 +193,7 @@ fail_unlock:
>  fail:
>
>         if (ret) {
> -               if (fbi)
> -                       framebuffer_release(fbi);
> +               framebuffer_release(fbi);
>                 if (fb) {
>                         drm_framebuffer_unregister_private(fb);
>                         drm_framebuffer_remove(fb);
> diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
> index 4b1b82a..157cf21 100644
> --- a/drivers/gpu/drm/msm/msm_gem.c
> +++ b/drivers/gpu/drm/msm/msm_gem.c
> @@ -543,8 +543,7 @@ void msm_gem_free_object(struct drm_gem_object *obj)
>                         drm_free_large(msm_obj->pages);
>
>         } else {
> -               if (msm_obj->vaddr)
> -                       vunmap(msm_obj->vaddr);
> +               vunmap(msm_obj->vaddr);
>                 put_pages(obj);
>         }
>
> --
> 2.1.3
>
> --
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