Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / kernel / irq / manage.c

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index eb47f8b..50da676 100644 (file)
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -80,7 +80,7 @@ int irq_can_set_affinity(unsigned int irq)
        return 1;
 }
 
-static void
+void
 irq_set_thread_affinity(struct irq_desc *desc, const struct cpumask *cpumask)
 {
        struct irqaction *action = desc->action;
@@ -109,17 +109,22 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
        spin_lock_irqsave(&desc->lock, flags);
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
-       if (desc->status & IRQ_MOVE_PCNTXT)
-               desc->chip->set_affinity(irq, cpumask);
+       if (desc->status & IRQ_MOVE_PCNTXT) {
+               if (!desc->chip->set_affinity(irq, cpumask)) {
+                       cpumask_copy(desc->affinity, cpumask);
+                       irq_set_thread_affinity(desc, cpumask);
+               }
+       }
        else {
                desc->status |= IRQ_MOVE_PENDING;
                cpumask_copy(desc->pending_mask, cpumask);
        }
 #else
-       cpumask_copy(desc->affinity, cpumask);
-       desc->chip->set_affinity(irq, cpumask);
+       if (!desc->chip->set_affinity(irq, cpumask)) {
+               cpumask_copy(desc->affinity, cpumask);
+               irq_set_thread_affinity(desc, cpumask);
+       }
 #endif
-       irq_set_thread_affinity(desc, cpumask);
        desc->status |= IRQ_AFFINITY_SET;
        spin_unlock_irqrestore(&desc->lock, flags);
        return 0;