[evolution/wip/webkit2] EHTMLEditorView - Crash in selection_is_in_table function

[Tomas Popela <tpopela src gnome org>]

commit 8f729bb8839269bb402e743cd7fb9bebe6a4f17e
Author: Tomas Popela <tpopela redhat com>
Date:   Mon Mar 30 11:34:04 2015 +0200

    EHTMLEditorView - Crash in selection_is_in_table function
    
    Check if the passed variable is not NULL before working with it.

 web-extensions/e-html-editor-view-dom-functions.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/web-extensions/e-html-editor-view-dom-functions.c 
b/web-extensions/e-html-editor-view-dom-functions.c
index c48dcb5..768d3c7 100644
--- a/web-extensions/e-html-editor-view-dom-functions.c
+++ b/web-extensions/e-html-editor-view-dom-functions.c
@@ -6411,11 +6411,15 @@ selection_is_in_table (WebKitDOMDocument *document,
                        }
                }
                if (WEBKIT_DOM_IS_HTML_TABLE_ELEMENT (parent)) {
-                       *table_node = parent;
+                       if (table_node != NULL)
+                               *table_node = parent;
                }
                parent = webkit_dom_node_get_parent_node (parent);
        }
 
+       if (table_node == NULL)
+               return FALSE;
+
        return *table_node != NULL;
 }