Re: [PATCH] drm/radeon: Fix kernel panic on shutdown

From	Borislav Petkov <bp@alien8.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH] drm/radeon: Fix kernel panic on shutdown
Date	2016-10-31 23:00 +0100
Message-ID	<sysMy-7ZA-15@gated-at.bofh.it> (permalink)
References	<sycHM-5ZM-5@gated-at.bofh.it> <synMR-4SB-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, Oct 31, 2016 at 04:21:55PM +0000, Deucher, Alexander wrote:
> > -----Original Message-----
> > From: Larry Finger [mailto:larry.finger@gmail.com] On Behalf Of Larry Finger
> > Sent: Monday, October 31, 2016 12:41 AM
> > To: Linus Torvalds
> > Cc: linux-kernel@vger.kernel.org; driver-devel@vger.kernel.org; Larry
> > Finger; Deucher, Alexander
> > Subject: [PATCH] drm/radeon: Fix kernel panic on shutdown
> > 
> > Since commit a481daa88fd4 ("drm/radeon: always apply pci shutdown
> > callbacks"), a Dell Latitude D600 laptop has crashed on shutdown. The
> > PCI Identification of the graphics adapter is "VGA compatible controller
> > [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV250/M9 GL [Mobility
> > FireGL 9000/Radeon 9000] [1002:4c66] (rev 01)".
> > 
> > Prior to commit b0c80bd5d2e3 ("drm/radeon: fix up dp aux tear down (v2)"),
> > I have no idea where the panic happened as the screen was blanked before
> > the crash.  Since that more recent change, the panic has been in routine
> > radeon_connector_unregister(), and has been shown to be due to a NULL
> > value in the ddc_bus member of struct drm_connector.
> > 
> > Fixes: a481daa88fd4 ("drm/radeon: always apply pci shutdown callbacks")
> > Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
> > Cc: Alex Deucher <alexander.deucher@amd.com>
> 
> Applied.  Thanks!

Reported-and-tested-by: Borislav Petkov <bp@suse.de>

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.

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[PATCH] drm/radeon: Fix kernel panic on shutdown Larry Finger <Larry.Finger@lwfinger.net> - 2016-10-31 05:50 +0100
  RE: [PATCH] drm/radeon: Fix kernel panic on shutdown "Deucher, Alexander" <Alexander.Deucher@amd.com> - 2016-10-31 17:40 +0100
    Re: [PATCH] drm/radeon: Fix kernel panic on shutdown Borislav Petkov <bp@alien8.de> - 2016-10-31 23:00 +0100

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