minor rtsp error handling fix

diff --git a/motioneye/utils.py b/motioneye/utils.py
index be7fd8f7924d33c444d5463f9631fb2edcc3c62c..17472b6bde93439703cd5e5c4d68ef5e8b28a905 100644 (file)
--- a/motioneye/utils.py
+++ b/motioneye/utils.py
@@ -472,7 +472,7 @@ def test_rtsp_url(data, callback):
         stream.read_until_regex('RTSP/1.0 \d+ ', on_rtsp)
         timeout[0] = io_loop.add_timeout(datetime.timedelta(seconds=settings.MJPG_CLIENT_TIMEOUT), on_rtsp)
 
-    def on_rtsp(data):
+    def on_rtsp(data=None):
         io_loop.remove_timeout(timeout[0])
 
         if data: