From c97eef40cf19b106e6a00006a3b8f3f9ee409045 Mon Sep 17 00:00:00 2001
From: Manuel Luis Sanmartin Rozada <manuel.luis@gmail.com>
Date: Tue, 6 Aug 2013 12:30:52 +0200
Subject: [PATCH] csv plugin: set datadir null when free

If you define twice DataDir:

    <Plugin csv>
	DataDir "/opt/collectd/var/lib/collectd/csv"
	DataDir stdout
    </Plugin>

the second time datadir will not be null and
you will get garbage in value_list_to_filename
---
 src/csv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/csv.c b/src/csv.c
index f123c5d6..958e34ba 100644
--- a/src/csv.c
+++ b/src/csv.c
@@ -215,7 +215,10 @@ static int csv_config (const char *key, const char *value)
 	if (strcasecmp ("DataDir", key) == 0)
 	{
 		if (datadir != NULL)
+		{
 			free (datadir);
+			datadir = NULL;
+		}
 		if (strcasecmp ("stdout", value) == 0)
 		{
 			use_stdio = 1;
-- 
2.30.2