1 files changed, 5 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
index 9fda75d1f5aa..36bed5a12750 100644
--- a/arch/powerpc/kernel/eeh_driver.c
+++ b/arch/powerpc/kernel/eeh_driver.c
@@ -143,10 +143,14 @@ static void eeh_disable_irq(struct pci_dev *dev)
 static void eeh_enable_irq(struct pci_dev *dev)
 {
         struct eeh_dev *edev = pci_dev_to_eeh_dev(dev);
+        struct irq_desc *desc;
 
         if ((edev->mode) & EEH_DEV_IRQ_DISABLED) {
                 edev->mode &= ~EEH_DEV_IRQ_DISABLED;
-                enable_irq(dev->irq);
+
+                desc = irq_to_desc(dev->irq);
+                if (desc && desc->depth > 0)
+                        enable_irq(dev->irq);
         }
 }