wintun: never return nil, nil

diff --git a/tun/wintun/wintun_windows.go b/tun/wintun/wintun_windows.go
index 811f53d2efd84934827e53415ea518d34ff45459..aea4ad1e7b27bbb04ed91f1cb79f685534c52aed 100644 (file)
--- a/tun/wintun/wintun_windows.go
+++ b/tun/wintun/wintun_windows.go
@@ -168,7 +168,7 @@ func GetInterface(ifname string, hwndParent uintptr) (*Wintun, error) {
                }
        }
 
-       return nil, nil
+       return nil, windows.ERROR_OBJECT_NOT_FOUND
 }
 
 //