From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>,
Manuel Lauss <mano@roarinelk.homelinux.net>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ASoC: Only deregister AC97 dev if it's name was not "AC97"
Date: Mon, 16 Mar 2009 16:01:37 +0000 [thread overview]
Message-ID: <20090316160137.GA24994@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <s5hbps1r10t.wl%tiwai@suse.de>
On Mon, Mar 16, 2009 at 03:32:50PM +0100, Takashi Iwai wrote:
> Hm, codec->ac97->dev.bus should be NULL unless it's registered,
> so calling soc_ac97_dev_unregister() should be harmless...
Atsushi, are you using ac97.c as your codec driver? Could you please
post the actual backtrace you're seeing?
> Maybe I miss something?
There's some fun and games here due to ac97.c which provides the ability
to use the standard ALSA AC97 functionality as a codec driver (that's
why there's the check on init) - I suspect there may be a double free.
next prev parent reply other threads:[~2009-03-16 16:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-16 14:26 Atsushi Nemoto
2009-03-16 14:32 ` Takashi Iwai
2009-03-16 15:00 ` Atsushi Nemoto
2009-03-16 16:01 ` Mark Brown [this message]
2009-03-17 1:18 ` Atsushi Nemoto
2009-03-17 13:58 ` Mark Brown
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