please test pcm channel patch

[Mathew Kanner]

Hello All,
	Please test this PCM patch.  It creates seperate locking
classes for PCM channels and should prevent the warning where multiple
mutexes from the same class are held (as reported recently).  I
believe this to be a good strategy as it masks fewer errors.

	Thanks,
	--mat

-- 
	The state has no business in the bedrooms of the
	nation.
			- Pierre Elliott Trudeau
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Index: channel.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/sound/pcm/channel.c,v
retrieving revision 1.92
diff -u -r1.92 channel.c
--- channel.c	27 Nov 2003 19:51:44 -0000	1.92
+++ channel.c	3 Dec 2003 05:59:56 -0000
@@ -69,7 +69,10 @@
 static void
 chn_lockinit(struct pcm_channel *c)
 {
-	c->lock = snd_mtxcreate(c->name, "pcm channel");
+	if (c->direction == PCMDIR_PLAY)
+		c->lock = snd_mtxcreate(c->name, "pcm play channel");
+	else
+		c->lock = snd_mtxcreate(c->name, "pcm record channel");
 }
 
 static void