From b4be7484261538c8d35f02769468bac154ddd5af Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Tue, 6 Jan 2009 14:54:41 +0000
Subject: [PATCH] fix for segfault in rrd_cgi: caused by freeing a invalid
 address when printing an error message.

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1724 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 program/src/rrd_cgi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/program/src/rrd_cgi.c b/program/src/rrd_cgi.c
index b5355410..13b7d067 100644
--- a/program/src/rrd_cgi.c
+++ b/program/src/rrd_cgi.c
@@ -374,6 +374,7 @@ static void calfree(
         if (calcpr) {
             free(calcpr);
         }
+        calcpr = NULL;
     }
 }
 
@@ -953,7 +954,6 @@ char     *drawgraph(
                         DS_NAM_SIZE) * sizeof(char));
             sprintf(err, "[ERROR: %s]", rrd_get_error());
             rrd_clear_error();
-            calfree();
             return err;
         }
     }
-- 
2.30.2