From 9d5f20aab265f7133bd87c5d859bdfc8531d558d Mon Sep 17 00:00:00 2001
From: sebres <serg.brester@sebres.de>
Date: Fri, 19 Jan 2018 12:32:24 +0100
Subject: [PATCH] FilterPyinotify: fixed sporadic test-case error
 (multi-threaded) - 'NoneType' object has no attribute 'stop'.

---
 fail2ban/server/filterpyinotify.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fail2ban/server/filterpyinotify.py b/fail2ban/server/filterpyinotify.py
index 17d387a1..4f3262b6 100644
--- a/fail2ban/server/filterpyinotify.py
+++ b/fail2ban/server/filterpyinotify.py
@@ -374,8 +374,11 @@ class FilterPyinotify(FileFilter):
 	def stop(self):
 		# stop filter thread:
 		super(FilterPyinotify, self).stop()
-		if self.__notifier: # stop the notifier
-			self.__notifier.stop()
+		try:
+			if self.__notifier: # stop the notifier
+				self.__notifier.stop()
+		except AttributeError: # pragma: no cover
+			if self.__notifier: raise
 
 	##
 	# Wait for exit with cleanup.