From e05577b4921165bfc5c4d9a85651ded64d1b9100 Mon Sep 17 00:00:00 2001
From: dj2ls <dj2ls@protonmail.com>
Date: Thu, 29 Dec 2022 17:49:30 +0100
Subject: [PATCH] return failed callsign check with bytes instead of str

---
 tnc/helpers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tnc/helpers.py b/tnc/helpers.py
index 0361d908..ce99b853 100644
--- a/tnc/helpers.py
+++ b/tnc/helpers.py
@@ -316,7 +316,7 @@ def check_callsign(callsign: bytes, crc_to_check: bytes):
             log.debug("[HLP] check_callsign matched:", call_with_ssid=call_with_ssid)
             return [True, bytes(call_with_ssid)]
 
-    return [False, ""]
+    return [False, b'']
 
 
 def check_session_id(id: bytes, id_to_check: bytes):