diff --git a/sys/dev/sound/pci/hda/hdac.c b/sys/dev/sound/pci/hda/hdac.c
--- a/sys/dev/sound/pci/hda/hdac.c
+++ b/sys/dev/sound/pci/hda/hdac.c
@@ -1743,8 +1743,7 @@
 	struct hdac_softc *sc = device_get_softc(dev);
 	int i, error;
 
-	error = bus_generic_detach(dev);
-	if (error != 0)
+	if ((error = device_delete_children(dev)) != 0)
 		return (error);
 
 	hdac_lock(sc);