Re: [patch] fix AB-BA deadlock inversion at cs46xx_dsp_remove_scb

[Duncan Sands <duncan.sands@math.u-psud.fr>]

Yes, that fixes it.  However

> +	unsignded long flags;

should be "unsigned":

Index: Linux/sound/pci/cs46xx/dsp_spos_scb_lib.c
===================================================================
--- Linux.orig/sound/pci/cs46xx/dsp_spos_scb_lib.c	2006-07-04 10:09:05.778370000 +0200
+++ Linux/sound/pci/cs46xx/dsp_spos_scb_lib.c	2006-07-04 11:53:18.353662891 +0200
@@ -180,6 +180,7 @@
 void cs46xx_dsp_remove_scb (struct snd_cs46xx *chip, struct dsp_scb_descriptor * scb)
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
+	unsigned long flags;
 
 	/* check integrety */
 	snd_assert ( (scb->index >= 0 && 
@@ -194,9 +195,9 @@
 		     goto _end);
 #endif
 
-	spin_lock(&scb->lock);
+	spin_lock_irqsave(&scb->lock, flags);
 	_dsp_unlink_scb (chip,scb);
-	spin_unlock(&scb->lock);
+	spin_unlock_irqrestore(&scb->lock, flags);
 
 	cs46xx_dsp_proc_free_scb_desc(scb);
 	snd_assert (scb->scb_symbol != NULL, return );
-
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