diff --git a/sys/dev/usb/uirda.c b/sys/dev/usb/uirda.c
index c25fa54bbdcb..b8cdcf1a1c3a 100644
--- a/sys/dev/usb/uirda.c
+++ b/sys/dev/usb/uirda.c
@@ -201,6 +201,10 @@ uirda_attach(device_t parent, device_t self, void *aux)
 	sc->sc_udev = dev;
 	sc->sc_iface = iface;
 
+	mutex_init(&sc->sc_wr_buf_lk, MUTEX_DEFAULT, IPL_NONE);
+	mutex_init(&sc->sc_rd_buf_lk, MUTEX_DEFAULT, IPL_NONE);
+	selinit(&sc->sc_rd_sel);
+
 	if (sc->sc_hdszi == 0)
 		sc->sc_hdszi = UIRDA_INPUT_HEADER_SIZE;
 
@@ -280,10 +284,6 @@ uirda_attach(device_t parent, device_t self, void *aux)
 
 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
 
-	mutex_init(&sc->sc_wr_buf_lk, MUTEX_DEFAULT, IPL_NONE);
-	mutex_init(&sc->sc_rd_buf_lk, MUTEX_DEFAULT, IPL_NONE);
-	selinit(&sc->sc_rd_sel);
-
 	ia.ia_type = IR_TYPE_IRFRAME;
 	ia.ia_methods = sc->sc_irm ? sc->sc_irm : &uirda_methods;
 	ia.ia_handle = sc;