From a86b9ed02ea77fc54d82bb7bb9b4a41900cd4f21 Mon Sep 17 00:00:00 2001
From: Pierre Pronchery <khorben@defora.org>
Date: Thu, 8 Oct 2015 18:58:12 +0200
Subject: [PATCH] Avoid memory leaks when overwriting existing values

---
 src/config.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/config.c b/src/config.c
index 53d122a..8fbe4df 100644
--- a/src/config.c
+++ b/src/config.c
@@ -150,7 +150,11 @@ int config_set(Config * config, char const * section, char const * variable,
 		string_delete(newvalue);
 		return 1;
 	}
-	string_delete(oldvalue);
+	if(oldvalue != NULL)
+	{
+		string_delete(p);
+		string_delete(oldvalue);
+	}
 	return 0;
 }