Fix a couple of missing NULL checks
For https://bugzilla.gnome.org/show_bug.cgi?id=708681
diff --git a/tree.c b/tree.c
index b517a2c..b0c1372 100644
--- a/tree.c
+++ b/tree.c
@@ -4299,6 +4299,7 @@
}
if (doc->intSubset == NULL) {
q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );
+ if (q == NULL) return(NULL);
q->doc = doc;
q->parent = parent;
doc->intSubset = (xmlDtdPtr) q;
@@ -4310,6 +4311,7 @@
} else
#endif /* LIBXML_TREE_ENABLED */
q = xmlStaticCopyNode(node, doc, parent, 1);
+ if (q == NULL) return(NULL);
if (ret == NULL) {
q->prev = NULL;
ret = p = q;