linux-kernel - Re: [PATCH] drm/bochs: deinit bugfix

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Date:   Fri, 7 Feb 2020 14:45:36 +0100
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] drm/bochs: deinit bugfix

On Fri, Feb 07, 2020 at 01:43:48PM +0100, Gerd Hoffmann wrote:
> Check whenever mode_config was actually properly
> initialized before trying to clean it up.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>

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

Really need to get managed drm cleanup going ...
-Daniel
> ---
>  drivers/gpu/drm/bochs/bochs_kms.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
> index cc93ff74fbd8..3a755c911342 100644
> --- a/drivers/gpu/drm/bochs/bochs_kms.c
> +++ b/drivers/gpu/drm/bochs/bochs_kms.c
> @@ -164,6 +164,9 @@ int bochs_kms_init(struct bochs_device *bochs)
>  
>  void bochs_kms_fini(struct bochs_device *bochs)
>  {
> +	if (!bochs->dev->mode_config.num_connector)
> +		return;
> +
>  	drm_atomic_helper_shutdown(bochs->dev);
>  	drm_mode_config_cleanup(bochs->dev);
>  }
> -- 
> 2.18.1
> 

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