panic upon kldunload snd_ich (lor # 159)

[Ariff Abdullah]

On Wed, 14 Sep 2005 10:48:30 +0900
Pyun YongHyeon <pyunyh at gmail.com> wrote:
> 
> Thanks for testing. Fix committed to HEAD(sndstat.c rev. 1.21)
> 
> [ .. ]
> 
> AFAIK, the LOR is well known to sound developers. Though it's not real
> LOR(grabbing sx lock while holding mutex) it's difficult to fix.
> 

This is supposed to fix that LOR, I pressume. Please try that.

--

Ariff Abdullah
MyBSD

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-------------- next part --------------
--- sys/dev/sound/pcm/sound.c.orig	Tue Sep 13 02:58:27 2005
+++ sys/dev/sound/pcm/sound.c	Thu Sep 15 03:29:06 2005
@@ -807,9 +807,9 @@
 	chn_kill(d->fakechan);
 	fkchan_kill(d->fakechan);
 
-	sndstat_unregister(dev);
 	snd_mtxunlock(d->lock);
 	snd_mtxfree(d->lock);
+	sndstat_unregister(dev);
 	return 0;
 }