fix crash accessing tagName without namespace

diff --git a/ext/dom/element.c b/ext/dom/element.c
index 063b24e6d56343cdc66bac4ea20ff1805ee9856a..640eb24dd195dbd68e21de62caa4fb138656fb60 100644 (file)
--- a/ext/dom/element.c
+++ b/ext/dom/element.c
@@ -116,10 +116,12 @@ int dom_element_tag_name_read(dom_object *obj, zval **retval TSRMLS_DC)
        if (ns != NULL && ns->prefix) {
                qname = xmlStrdup(ns->prefix);
                qname = xmlStrcat(qname, ":");
+               qname = xmlStrcat(qname, nodep->name);
+               ZVAL_STRING(*retval, qname, 1);
+               xmlFree(qname);
+       } else {
+               ZVAL_STRING(*retval, nodep->name, 1);
        }
-       qname = xmlStrcat(qname, nodep->name);
-       ZVAL_STRING(*retval, qname, 1);
-       xmlFree(qname);
 
        return SUCCESS;
 }