Signed-off-by: Prarit Bhargava <prarit-sJ/iWh9BUns@public.gmane.org>

===== drivers/acpi/pci_irq.c 1.35 vs edited =====
--- 1.35/drivers/acpi/pci_irq.c	2005-01-04 21:48:17 -05:00
+++ edited/drivers/acpi/pci_irq.c	2005-01-14 08:14:34 -05:00
@@ -487,10 +487,10 @@
 	 * If no PRT entry was found, we'll try to derive an IRQ from the
 	 * device's parent bridge.
 	 */
-	if (!gsi)
+	if (gsi == -1)
  		gsi = acpi_pci_irq_derive(dev, pin,
 					  &edge_level, &active_high_low);
-	if (!gsi)
+	if (gsi == -1)
 		return_VOID;
 
 	/*