From: Daniel Veillard <veillard@redhat.com>
Date: Thu, 11 Jul 2013 15:41:22 +0800
Subject: Catch malloc error and exit accordingly

As pointed privately by Bill Parker <wp02855@gmail.com>
---
 xmllint.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xmllint.c b/xmllint.c
index c0196ab..4d464e4 100644
--- a/xmllint.c
+++ b/xmllint.c
@@ -3090,6 +3090,10 @@ static void usage(const char *name) {
 static void registerNode(xmlNodePtr node)
 {
     node->_private = malloc(sizeof(long));
+    if (node->_private == NULL) {
+        fprintf(stderr, "Out of memory in xmllint:registerNode()\n");
+	exit(XMLLINT_ERR_MEM);
+    }
     *(long*)node->_private = (long) 0x81726354;
     nbregister++;
 }