diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -12112,7 +12112,7 @@
 
 	for_each_vi(pi, v, vi) {
 		ifp = vi->ifp;
-		if (ifp == NULL)
+		if (ifp == NULL || IS_DETACHING(vi))
 			continue;
 
 		if (lc->link_ok) {