diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index e2b7de4..1ff3bb5 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -286,7 +286,7 @@
 					pci_name(pdev), i,
 					(unsigned long long) pci_start,
 					(unsigned long long) pci_end);
-				res->flags = 0;
+				res->flags |= IORESOURCE_DISABLED;
 			}
 		}
 	}
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 9c2496d..8f0a570 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -81,7 +81,7 @@
 	}
 
 	for (i = 0; (res = pnp_get_resource(dev, IORESOURCE_MEM, i)); i++) {
-		if (res->flags & IORESOURCE_UNSET)
+		if (res->flags & IORESOURCE_DISABLED)
 			continue;
 
 		reserve_range(dev, res->start, res->end, 0);