[gedit] spell: fix critical message when no dictionaries installed

[Sébastien Wilmet <swilmet src gnome org>]

commit e5a6c59ea4579c22e8600fbe3ecf09abd3570d7f
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Apr 6 11:18:55 2016 +0200

    spell: fix critical message when no dictionaries installed

 plugins/spell/gedit-spell-plugin.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/plugins/spell/gedit-spell-plugin.c b/plugins/spell/gedit-spell-plugin.c
index dc430dd..06af123 100644
--- a/plugins/spell/gedit-spell-plugin.c
+++ b/plugins/spell/gedit-spell-plugin.c
@@ -482,7 +482,13 @@ on_document_saved (GeditDocument *doc,
 
        if (checker != NULL)
        {
-               language_code = gspell_language_get_code (gspell_checker_get_language (checker));
+               const GspellLanguage *lang;
+
+               lang = gspell_checker_get_language (checker);
+               if (lang != NULL)
+               {
+                       language_code = gspell_language_get_code (lang);
+               }
        }
 
        tab = gedit_tab_get_from_document (doc);