diff --git a/sys/dev/ppbus/ppb_base.c b/sys/dev/ppbus/ppb_base.c
index c2f1d9b1fd2e..060cb439c528 100644
--- a/sys/dev/ppbus/ppb_base.c
+++ b/sys/dev/ppbus/ppb_base.c
@@ -131,10 +131,11 @@ ppb_set_mode(device_t bus, int mode)
 	struct ppb_data *ppb = DEVTOSOFTC(bus);
 	int old_mode = ppb_get_mode(bus);
 
-	if (!PPBUS_SETMODE(device_get_parent(bus), mode)) {
-		/* XXX yet device mode = ppbus mode = chipset mode */
-		ppb->mode = (mode & PPB_MASK);
-	}
+	if (PPBUS_SETMODE(device_get_parent(bus), mode))
+		return -1;
+
+	/* XXX yet device mode = ppbus mode = chipset mode */
+	ppb->mode = (mode & PPB_MASK);
 
 	return (old_mode);
 }