diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index c99e1e994cd4..ac90392cce33 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2561,6 +2561,7 @@ static int btusb_mtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwnam
 				} else {
 					bt_dev_err(hdev, "Failed wmt patch dwnld status (%d)",
 						   status);
+					err = -EIO;
 					goto err_release_fw;
 				}
 			}