diff --git a/sys/dev/usb/storage/umass.c b/sys/dev/usb/storage/umass.c
--- a/sys/dev/usb/storage/umass.c
+++ b/sys/dev/usb/storage/umass.c
@@ -2890,10 +2890,7 @@
 	}
 	if (sc->sc_transform(sc, cmd, cmd_len))
 		return (true);	/* Execute command */
-
-	xpt_freeze_devq(ccb->ccb_h.path, 1);
-	ccb->ccb_h.status = CAM_REQ_INVALID | CAM_DEV_QFRZN;
-	xpt_done(ccb);
+	umass_cam_illegal_request(ccb);
 	return (false);		/* Already failed -- don't submit */
 }