linux-kernel - Re: [PATCH 2/3] drm/bochs: add missing drm_atomic_helper

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20190402075402.GA2665@phenom.ffwll.local>
Date:   Tue, 2 Apr 2019 09:54:02 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Gerd Hoffmann <kraxel@...hat.com>
Cc:     dri-devel@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "open list:DRM DRIVER FOR BOCHS VIRTUAL GPU" 
        <virtualization@...ts.linux-foundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] drm/bochs: add missing drm_atomic_helper_shutdown()
 call.

On Mon, Apr 01, 2019 at 04:03:05PM +0200, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
> ---
>  drivers/gpu/drm/bochs/bochs_kms.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
> index 9e7cd6b34106..93cb27f93d39 100644
> --- a/drivers/gpu/drm/bochs/bochs_kms.c
> +++ b/drivers/gpu/drm/bochs/bochs_kms.c
> @@ -293,6 +293,7 @@ int bochs_kms_init(struct bochs_device *bochs)
>  void bochs_kms_fini(struct bochs_device *bochs)
>  {
>  	if (bochs->mode_config_initialized) {

This mode_config_initialized is hilarious. I think (from looking at git
history and all) this started in radeon, back when kms was an add-on, and
radeon.ko still supported ums. Then it was dutifully copypasted into
cirrus, bochs, mgag200, hisilicon and also amdgpu.

Afaict none of these drivers need this (but I didn't bother to review
amdgpu and radeon fully). Would be nice little cleanup to follow up with.

Anyway, on your 3 patches here:

Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch>

> +		drm_atomic_helper_shutdown(bochs->dev);
>  		drm_mode_config_cleanup(bochs->dev);
>  		bochs->mode_config_initialized = false;
>  	}
> -- 
> 2.18.1
> 

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