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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