From 1dfff0a792aa0e750094aa9642ae8f4991e7e292 Mon Sep 17 00:00:00 2001
From: Jonathan Lebon <jlebon@redhat.com>
Date: Thu, 1 May 2014 16:31:59 -0400
Subject: [PATCH] cmd_file(): only free words if succeeded

Otherwise, we may accidentally summon Cthulhu.
---
 session.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/session.cxx b/session.cxx
index 3b968782c..f457829a6 100644
--- a/session.cxx
+++ b/session.cxx
@@ -1773,8 +1773,10 @@ systemtap_session::cmd_file ()
   int rc = wordexp (cmd.c_str (), &words, WRDE_NOCMD|WRDE_UNDEF);
   string file;
   if(rc == 0 && words.we_wordc > 0)
-    file = words.we_wordv[0];
-  wordfree (& words);
+    {
+      file = words.we_wordv[0];
+      wordfree (& words);
+    }
   return file;
 }
 
-- 
2.43.5