Seems that while updating 2.3.14 irq stuff, someone forgot to
implement return path in case irq is really freed.
I think the right patch is this:
--- linux/arch/i386/kernel/irq.c.orig Thu Aug 19 22:04:55 1999
+++ linux/arch/i386/kernel/irq.c Thu Aug 19 22:08:23 1999
@@ -633,6 +633,8 @@
if (!irq_desc[irq].action) {
irq_desc[irq].status |= IRQ_DISABLED;
irq_desc[irq].handler->shutdown(irq);
+ spin_unlock_irqrestore(&irq_controller_lock,flags);
+ return;
}
}
printk("Trying to free free IRQ%d\n",irq);
Bye,
Oleg
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