[libxslt] Fix a crash on misformed imported stylesheets

[Daniel Veillard <veillard src gnome org>]

commit f44c92bfb91695ccfffd95b7e358c8740d413b19
Author: Daniel Veillard <veillard redhat com>
Date:   Fri Sep 18 11:43:35 2009 +0200

    Fix a crash on misformed imported stylesheets
    
    * libxslt/preproc.c: handle the case where xsl:template parent
      is not an element.

 libxslt/preproc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libxslt/preproc.c b/libxslt/preproc.c
index 9a5e9d6..b47d809 100644
--- a/libxslt/preproc.c
+++ b/libxslt/preproc.c
@@ -82,7 +82,7 @@ xsltCheckTopLevelElement(xsltStylesheetPtr style, xmlNodePtr inst, int err) {
 	}
 	return(0);
     }
-    if ((parent->ns == NULL) ||
+    if ((parent->ns == NULL) || (parent->type != XML_ELEMENT_NODE) ||
         ((parent->ns != inst->ns) &&
 	 (!xmlStrEqual(parent->ns->href, inst->ns->href))) ||
 	((!xmlStrEqual(parent->name, BAD_CAST "stylesheet")) &&