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From: Daniel Vetter <daniel@ffwll.ch>
Date: Tue, 4 Jul 2017 17:14:39 +0200
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Subject: Re: [PATCH] BUG-REPORT: snd-hda: hacked-together EPROBE_DEFER support
To: Takashi Iwai <tiwai@suse.de>, Chris Wilson <chris@chris-wilson.co.uk>,
        Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
        Guneshwor Singh <guneshwor.o.singh@intel.com>,
        Hardik T Shah <hardik.t.shah@intel.com>,
        Libin Yang <libin.yang@intel.com>,
        "Subhransu S. Prusty" <subhransu.s.prusty@intel.com>,
        Vinod Koul <vinod.koul@intel.com>, Julia Lawall <Julia.Lawall@lip6.fr>,
        Jaroslav Kysela <perex@perex.cz>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Thu, Jun 29, 2017 at 12:25 PM, Daniel Vetter <daniel@ffwll.ch> wrote:
>> Now I took a closer look, and this appears rather like a brown paper
>> bag bug, not about the deferred probe or module dependency.
>> The fix patch is below.  Could you check whether it works?
>
> Yay, this works!
>
> Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Next one: i915 module reloading is broken because something is holding
onto a module reference and doesn't drop it. Didn't check which sets
of patches introduced this, but iirc this worked last week. Disabling
hda-intel gets in Kconfig gets rid of the problem, so I assume
something in the sound driver is leaking that reference ...

It's also causing lots and lots of red in our CI :( If we can't fix
this we need to disable snd-hda-intel there too.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch