Re: linux-next: User Mode Linux broken

From: Thomas Gleixner
Date: Fri Oct 22 2010 - 09:27:48 EST


On Fri, 22 Oct 2010, Thomas Gleixner wrote:
> On Fri, 22 Oct 2010, Richard Weinberger wrote:
> Well, nothing is supposed to call enable_irq() before an interrupt is
> installed with request_irq() or setup_irq().
>
> Patch below should fix your problem.

Yuck. Missed the second instance. Updated patch below.

Thanks,

tglx
---
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index a746e30..97e204b 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -395,13 +395,11 @@ void __init init_IRQ(void)
irq_desc[TIMER_IRQ].action = NULL;
irq_desc[TIMER_IRQ].depth = 1;
irq_desc[TIMER_IRQ].chip = &SIGVTALRM_irq_type;
- enable_irq(TIMER_IRQ);
for (i = 1; i < NR_IRQS; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &normal_irq_type;
- enable_irq(i);
}
}

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