From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Liam Girdwood <lrg@ti.com>
Cc: alsa-devel@alsa-project.org, Misael Lopez Cruz <misael.lopez@ti.com>
Subject: Re: [PATCH] ASoC: dapm: Fix locking during codec shutdown
Date: Fri, 6 Jul 2012 17:02:21 +0100 [thread overview]
Message-ID: <20120706160220.GG4017@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1341590225-20837-1-git-send-email-lrg@ti.com>
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On Fri, Jul 06, 2012 at 04:57:05PM +0100, Liam Girdwood wrote:
> Codec shutdown performs a DAPM power sequence that might cause conflicts
> and/or race conditions if another stream power event is running simultaneously.
> Use card's dapm mutex to protect any potential race condition between them.
There's a bigger problem here if we're managing to run into this - the
shutdown function is only supposed to be being called while the system
is in the middle of shutting down so we've probably got a bunch of other
races further up the stack to worry about too...
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next prev parent reply other threads:[~2012-07-06 16:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-06 15:57 [PATCH] ASoC: dapm: Fix locking during codec shutdown Liam Girdwood
2012-07-06 16:02 ` Mark Brown [this message]
2012-07-06 16:36 ` Liam Girdwood
2012-07-06 16:43 ` Mark Brown
2012-07-06 17:10 ` Liam Girdwood
2012-07-06 17:20 ` Mark Brown
2012-07-06 18:03 ` Mark Brown
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