linux-kernel - Re: [alsa-devel] Regression in next with codec unload and snd_soc_component

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Date:   Fri, 09 Aug 2019 09:25:11 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [alsa-devel] Regression in next with codec unload and      snd_soc_component_get/put

On Fri, 09 Aug 2019 09:00:03 +0200,
Tony Lindgren wrote:
> 
> Hi,
> 
> Looks like commit 4a81e8f30d0b ("ASoC: soc-component: add
> snd_soc_component_get/put()") causes a regression where trying
> to rmmod a codec driver fails with module is in use error after
> rmmod of snd-soc-audio-graph-card for example.
> 
> Any ideas what goes wrong there?

There is an obvious typo: soc_cleanup_component() should call
snd_soc_component_module_put_when_remove() instead of *_close().

And the module_get_upon_open boolean switch is a bit hard to
understand.  Maybe using enum would be simpler there.

> BTW, looks like the lore.kernel.org link in that commit also is
> unreachable?

It's because alsa-devel ML isn't tracked on lore.kernel.org,
unfortunately.

Jaroslav, I asked this already.  Shall we ask lore to track alsa-devel
ML?
  https://korg.wiki.kernel.org/userdoc/lore

thanks,

Takashi