From 42f4619d6b436e1db7685692281ae60999527106 Mon Sep 17 00:00:00 2001
From: Soeren Apel <soeren@apelpie.net>
Date: Tue, 8 Sep 2015 19:09:54 +0200
Subject: [PATCH] Fix #550 by allowing an empty trigger match list

1e7659609bddd40471faf9a8e81ee7554d77dce9 is related
to this change and required to fix #550 as well.
---
 src/trigger.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/trigger.c b/src/trigger.c
index 34474982..4b95a5a1 100644
--- a/src/trigger.c
+++ b/src/trigger.c
@@ -80,7 +80,9 @@ SR_API void sr_trigger_free(struct sr_trigger *trig)
 
 	for (l = trig->stages; l; l = l->next) {
 		stage = l->data;
-		g_slist_free_full(stage->matches, g_free);
+
+		if (stage->matches)
+			g_slist_free_full(stage->matches, g_free);
 	}
 	g_slist_free_full(trig->stages, g_free);