Messages in this thread Patch in this message | | | Date | Wed, 17 Dec 2008 13:42:29 -0800 | From | Jeremy Fitzhardinge <> | Subject | [PATCH] xen: make sure irq_desc is allocated for interrupts |
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Impact: bugfix
Make sure all Xen irqs have an irq_desc.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> --- drivers/xen/events.c | 5 +++++ 1 file changed, 5 insertions(+)
=================================================================== --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -233,6 +233,7 @@ static int find_unbound_irq(void) { int irq; + struct irq_desc *desc; /* Only allocate from dynirq range */ for (irq = 0; irq < nr_irqs; irq++) @@ -242,6 +243,10 @@ if (irq == nr_irqs) panic("No available IRQ to bind to: increase nr_irqs!\n"); + desc = irq_to_desc_alloc_cpu(irq, 0); + if (WARN_ON(desc == NULL)) + return -1; + return irq; }
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