From 1d80237d14c9bf7be01325765c35b5809ce0030e Mon Sep 17 00:00:00 2001
From: Ian Jackson <Ian.Jackson@eu.citrix.com>
Date: Tue, 11 Jan 2011 19:28:22 +0000
Subject: [PATCH] libxl: config parser: do not segfault in some error paths

In error paths, xlu__cfg_set_free can be called on NULL.
So check for that rather than segfaulting.

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
---
 tools/libxl/libxlu_cfg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/libxl/libxlu_cfg.c b/tools/libxl/libxlu_cfg.c
index 864a723009..1ade7eacda 100644
--- a/tools/libxl/libxlu_cfg.c
+++ b/tools/libxl/libxlu_cfg.c
@@ -93,6 +93,7 @@ int xlu_cfg_readdata(XLU_Config *cfg, const char *data, int length) {
 void xlu__cfg_set_free(XLU_ConfigSetting *set) {
     int i;
 
+    if (!set) return;
     free(set->name);
     for (i=0; i<set->nvalues; i++)
         free(set->values[i]);
-- 
2.30.2