diff --git a/drivers/staging/unisys/visorchipset/visorchipset.h b/drivers/staging/unisys/visorchipset/visorchipset.h
index 3a8aa5614b4b29f897dd8e0d19d76c65d2fbbf38..3848de2533710c786e70d9d94b7f2430ce087b9c 100644
--- a/drivers/staging/unisys/visorchipset/visorchipset.h
+++ b/drivers/staging/unisys/visorchipset/visorchipset.h
@@ -141,8 +141,7 @@ struct visorchipset_bus_info {
 	struct controlvm_message_header pending_msg_hdr;/* CONTROLVM MsgHdr */
 	/** For private use by the bus driver */
 	void *bus_driver_context;
-	u64 dev_no;
-
+	u32 dev_no;
 };
 
 static inline struct visorchipset_bus_info *