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Date: Mon, 24 Jul 2017 20:45:42 -0700
From: Greg KH <gregkh@linuxfoundation.org>
To: John Brooks <john@fastquake.com>
Cc: alexander.deucher@amd.com, christian.koenig@amd.com,
        stable@vger.kernel.org
Subject: Re: [PATCH for 4.9] drm/ttm: Fix use-after-free in ttm_bo_clean_mm
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 <20170725031530.GA26615@kitsune.fastquake.com>
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On Tue, Jul 25, 2017 at 03:15:30AM +0000, John Brooks wrote:
> We unref the man->move fence in ttm_bo_clean_mm() and then call
> ttm_bo_force_list_clean() which waits on it, except the refcount is now
> zero so a warning is generated (or worse):

<snip>

Thanks for the backport!

greg k-h