diff --git a/sys/dev/hifn/hifn7751.c b/sys/dev/hifn/hifn7751.c
index 23cf019b93a..2e7545779b0 100644
--- a/sys/dev/hifn/hifn7751.c
+++ b/sys/dev/hifn/hifn7751.c
@@ -637,8 +637,6 @@ hifn_detach(device_t dev)
 
 	crypto_unregister_all(sc->sc_cid);
 
-	bus_generic_detach(dev);	/*XXX should be no children, right? */
-
 	bus_teardown_intr(dev, sc->sc_irq, sc->sc_intrhand);
 	/* XXX don't store rid */
 	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
diff --git a/sys/dev/safe/safe.c b/sys/dev/safe/safe.c
index da2afbd38fa..c512f3fc62c 100644
--- a/sys/dev/safe/safe.c
+++ b/sys/dev/safe/safe.c
@@ -464,7 +464,6 @@ safe_detach(device_t dev)
 	mtx_destroy(&sc->sc_ringmtx);
 	safe_dma_free(sc, &sc->sc_ringalloc);
 
-	bus_generic_detach(dev);
 	bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
 	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);