1 files changed, 5 insertions, 1 deletions

diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 543ea2e5ad93..9c7e2e4c1fe7 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -147,7 +147,11 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
         if (unlikely(irqfixup)) {
                 /* Don't punish working computers */
                 if ((irqfixup == 2 && irq == 0) || action_ret == IRQ_NONE) {
-                        int ok = misrouted_irq(irq);
+                        int ok;
+
+                        spin_unlock(&desc->lock);
+                        ok = misrouted_irq(irq);
+                        spin_lock(&desc->lock);
                         if (action_ret == IRQ_NONE)
                                 desc->irqs_unhandled -= ok;
                 }