[libgsf] xml: fix probing crash.

[Morten Welinder <mortenw src gnome org>]

commit 5000b843bd5b3269e0cb3eba80ceeda0cb07167f
Author: Morten Welinder <terra gnome org>
Date:   Thu Oct 29 10:55:08 2009 -0400

    xml: fix probing crash.

 ChangeLog        |    5 +++++
 NEWS             |    3 +++
 gsf/gsf-libxml.c |    8 +++++---
 3 files changed, 13 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b841a62..a746139 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-10-29  Morten Welinder  <terra gnome org>
+
+	* gsf/gsf-libxml.c (gsf_xml_probe_element): Fix crash on documents
+	like <a:b xmlns:c="d://"/>
+
 2009-10-11  Morten Welinder <terra gnome org>
 
 	* Release 1.14.16
diff --git a/NEWS b/NEWS
index 5479805..07c773e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,8 @@
 libgsf 1.14.17
 
+Morten:
+	* Fix xml parser crash.
+
 --------------------------------------------------------------------------
 libgsf 1.14.16
 
diff --git a/gsf/gsf-libxml.c b/gsf/gsf-libxml.c
index 64a828f..68d6aac 100644
--- a/gsf/gsf-libxml.c
+++ b/gsf/gsf-libxml.c
@@ -448,8 +448,10 @@ gsf_xml_probe_element (GsfXMLProbeState *state,
 		       int nb_defaulted,
 		       const xmlChar **attributes)
 {
-	state->success = (state->func) (name, prefix, URI, nb_namespaces, namespaces,
-					nb_attributes, nb_defaulted, attributes);
+	state->success =
+		state->func &&
+		state->func (name, prefix, URI, nb_namespaces, namespaces,
+			     nb_attributes, nb_defaulted, attributes);
 	state->func = NULL;
 }
 
@@ -1134,7 +1136,7 @@ gsf_xml_in_doc_set_unknown_handler (GsfXMLInDoc *doc,
  * @dtor : #GsfXMLInExtDtor
  * @attrs : array of xmlChar const *
  *
- * Take the first node from @doc as the current node and call it's start handler.
+ * Take the first node from @doc as the current node and call its start handler.
  **/
 void
 gsf_xml_in_push_state (GsfXMLIn *xin, GsfXMLInDoc const *doc,