linux-kernel - Re: [Intel-gfx] [PATCH] drm/i915: fix itnull.cocci warnings (fwd)

Open Source and information security mailing list archives

Date:	Mon, 18 Jan 2016 18:20:25 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	David Airlie <airlied@...ux.ie>,
	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, kbuild-all@...org,
	Daniel Vetter <daniel.vetter@...el.com>
Subject: Re: [Intel-gfx] [PATCH] drm/i915: fix itnull.cocci warnings (fwd)

On Mon, Jan 18, 2016 at 04:49:06PM +0100, Julia Lawall wrote:
> List_for_each entry binds its first argument to an offset from the list
> pointer, so this should not be NULL.
> 
> Generated by: scripts/coccinelle/iterators/itnull.cocci
> 
> Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
> ---
> 
> Please take the patch only if it's a positive warning. Thanks!

Against which tree is this? I can't find this anywhere like that ...
-Daniel

> 
>  intel_display.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -16498,7 +16498,7 @@ void intel_modeset_preclose(struct drm_d
>  		struct intel_flip_work *work;
> 
>  		list_for_each_entry(work, &crtc->flip_work, head) {
> -			if (work && work->event &&
> +			if (work->event &&
>  			    work->event->base.file_priv == file) {
>  				kfree(work->event);
>  				work->event = NULL;
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives