[gtk+] GtkFontChooser: check if font name is NULL in gtk_font_selection_set_font_name

[Matthias Clasen <matthiasc src gnome org>]

commit 14fbbf1420d0f5ec75855cc685401a024fa098d8
Author: Alberto Ruiz <aruiz gnome org>
Date:   Tue May 3 01:37:48 2011 +0100

    GtkFontChooser: check if font name is NULL in gtk_font_selection_set_font_name

 gtk/gtkfontchooser.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkfontchooser.c b/gtk/gtkfontchooser.c
index bc86b81..8a98b1e 100644
--- a/gtk/gtkfontchooser.c
+++ b/gtk/gtkfontchooser.c
@@ -1535,6 +1535,7 @@ gtk_font_selection_set_font_name (GtkFontSelection *fontsel,
   gboolean              found = FALSE;
   
   g_return_val_if_fail (GTK_IS_FONT_SELECTION (fontsel), FALSE);
+  g_return_val_if_fail (fontname != NULL, FALSE);
 
   if (!gtk_widget_has_screen (GTK_WIDGET (fontsel)))
     return FALSE;