--- linux-2.6.9-bk4-orig/drivers/base/platform.c	2004-10-20 15:50:29.000000000 +0100
+++ linux-2.6.9-bk4/drivers/base/platform.c	2004-10-20 18:37:12.000000000 +0100
@@ -54,7 +54,7 @@
 {
 	struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num);
 
-	return r ? r->start : 0;
+	return r ? r->start : -ENOENT;
 }
 
 /**