Index: head/sys/dev/cxgbe/t4_main.c
===================================================================
--- head/sys/dev/cxgbe/t4_main.c
+++ head/sys/dev/cxgbe/t4_main.c
@@ -1475,6 +1475,10 @@
 		sc->cdev = NULL;
 	}
 
+	sx_xlock(&t4_list_lock);
+	SLIST_REMOVE(&t4_list, sc, adapter, link);
+	sx_xunlock(&t4_list_lock);
+
 	sc->flags &= ~CHK_MBOX_ACCESS;
 	if (sc->flags & FULL_INIT_DONE) {
 		if (!(sc->flags & IS_VF))
@@ -1568,12 +1572,6 @@
 	free(sc->tids.tid_tab, M_CXGBE);
 	free(sc->tt.tls_rx_ports, M_CXGBE);
 	t4_destroy_dma_tag(sc);
-	if (mtx_initialized(&sc->sc_lock)) {
-		sx_xlock(&t4_list_lock);
-		SLIST_REMOVE(&t4_list, sc, adapter, link);
-		sx_xunlock(&t4_list_lock);
-		mtx_destroy(&sc->sc_lock);
-	}
 
 	callout_drain(&sc->sfl_callout);
 	if (mtx_initialized(&sc->tids.ftid_lock)) {
@@ -1582,12 +1580,8 @@
 	}
 	if (mtx_initialized(&sc->tids.atid_lock))
 		mtx_destroy(&sc->tids.atid_lock);
-	if (mtx_initialized(&sc->sfl_lock))
-		mtx_destroy(&sc->sfl_lock);
 	if (mtx_initialized(&sc->ifp_lock))
 		mtx_destroy(&sc->ifp_lock);
-	if (mtx_initialized(&sc->reg_lock))
-		mtx_destroy(&sc->reg_lock);
 
 	if (rw_initialized(&sc->policy_lock)) {
 		rw_destroy(&sc->policy_lock);
@@ -1603,6 +1597,10 @@
 		if (rw_initialized(&mw->mw_lock))
 			rw_destroy(&mw->mw_lock);
 	}
+
+	mtx_destroy(&sc->sfl_lock);
+	mtx_destroy(&sc->reg_lock);
+	mtx_destroy(&sc->sc_lock);
 
 	bzero(sc, sizeof(*sc));