conn: close ipv4 socket when ipv6 socket fails

diff --git a/conn_default.go b/conn_default.go
index 549483cc67f46e3e1832b4e38c845b0e80d5344c..6f17de5b61f191f927ff4b4f637840b6ca53c0fe 100644 (file)
--- a/conn_default.go
+++ b/conn_default.go
@@ -111,7 +111,6 @@ func CreateBind(uport uint16, device *Device) (Bind, uint16, error) {
 
        bind.ipv6, port, err = listenNet("udp6", port)
        if err != nil && extractErrno(err) != syscall.EAFNOSUPPORT {
-               return nil, 0, err
                bind.ipv4.Close()
                bind.ipv4 = nil
                return nil, 0, err