1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 6da0f9beab19..c9336751e5e3 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -372,6 +372,7 @@ static int acpi_isa_register_gsi(struct pci_dev *dev)
 
         /* Interrupt Line values above 0xF are forbidden */
         if (dev->irq > 0 && (dev->irq <= 0xF) &&
+            acpi_isa_irq_available(dev->irq) &&
             (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) {
                 dev_warn(&dev->dev, "PCI INT %c: no GSI - using ISA IRQ %d\n",
                          pin_name(dev->pin), dev->irq);