Index: kern/subr_bus.c
===================================================================
RCS file: /home/dcvs/src/sys/kern/subr_bus.c,v
retrieving revision 1.38
diff -u -p -r1.38 subr_bus.c
--- kern/subr_bus.c	5 May 2007 16:52:55 -0000	1.38
+++ kern/subr_bus.c	29 Jul 2007 09:23:09 -0000
@@ -2618,9 +2618,6 @@ 
 		driver = dmd->dmd_driver;
 		PDEBUG(("Loading module: driver %s on bus %s",
 		        DRIVERNAME(driver), dmd->dmd_busname));
-		error = devclass_add_driver(bus_devclass, driver);
-		if (error)
-			break;
 
 		/*
 		 * If the driver has any base classes, make the
@@ -2633,8 +2630,12 @@ 		if (driver->baseclasses)
 			parentname = driver->baseclasses[0]->name;
 		else
 			parentname = NULL;
-	    	*dmd->dmd_devclass = devclass_find_internal(driver->name,
+		*dmd->dmd_devclass = devclass_find_internal(driver->name,
 							    parentname, TRUE);
+
+		error = devclass_add_driver(bus_devclass, driver);
+		if (error)
+			break;
 		break;
 
 	case MOD_UNLOAD: