diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 764f3a3..59b9092 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -26,7 +26,7 @@
 			  resource_size_t end, int port)
 {
 	char *regionid;
-	const char *pnpid = dev->dev.bus_id;
+	const char *pnpid = dev_name(&dev->dev);
 	struct resource *res;
 
 	regionid = kmalloc(16, GFP_KERNEL);