linux-kernel - Re: [PATCH] drm/cirrus: fix connector leak at unload

Open Source and information security mailing list archives

Date:   Fri, 11 Jan 2019 23:16:38 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Rob Clark <robdclark@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, Rob Clark <rclark@...hat.com>,
        Daniel Stone <daniels@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        YueHaibing <yuehaibing@...wei.com>, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        Gerd Hoffmann <kraxel@...hat.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Dave Airlie <airlied@...hat.com>,
        Thierry Reding <treding@...dia.com>
Subject: Re: [PATCH] drm/cirrus: fix connector leak at unload

On Fri, Jan 11, 2019 at 11:06:20PM +0100, Daniel Vetter wrote:
> On Fri, Jan 11, 2019 at 09:02:34AM -0500, Rob Clark wrote:
> > This fixes an '*ERROR* connector VGA-2 leaked!' splat at driver unload.
> > 
> > Signed-off-by: Rob Clark <robdclark@...il.com>
> > ---
> > Similar case to the issue that was fixed recently in drm/ast
> 
> Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch>

Actually I just pushed a patch to drm-misc-next to rename this function to
drm_helper_force_disable_all(), so you need to respin ... My r-b still
holds.
-Daniel

> 
> > 
> >  drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
> > index 4dd499c7d1ba..bb379ec4c182 100644
> > --- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c
> > +++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
> > @@ -256,6 +256,8 @@ static int cirrus_fbdev_destroy(struct drm_device *dev,
> >  {
> >  	struct drm_framebuffer *gfb = gfbdev->gfb;
> >  
> > +	drm_crtc_force_disable_all(dev);
> > +
> >  	drm_fb_helper_unregister_fbi(&gfbdev->helper);
> >  
> >  	vfree(gfbdev->sysram);
> > -- 
> > 2.20.1
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@...ts.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch

-- 
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