test/test-hfp: Fix passing missing backlog parameter to sco.listen()

diff --git a/test/test-hfp b/test/test-hfp
index 38da076..873de0a 100755 (executable)
--- a/test/test-hfp
+++ b/test/test-hfp
@@ -233,7 +233,7 @@ if __name__ == '__main__':
        if audio_supported:
                sco = socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_SCO)
                sco.bind(BDADDR_ANY)
-               sco.listen()
+               sco.listen(1)
        else:
                sco = None