Fix:core:Check for nullpointers before use members in graphics_free()

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@4462 ffa7fe5e-494d-0410-b361-a75ebd5db220

diff --git a/navit/navit/graphics.c b/navit/navit/graphics.c
index 3d06315..0687ccc 100644 (file)
--- a/navit/navit/graphics.c
+++ b/navit/navit/graphics.c
@@ -393,6 +393,8 @@ struct graphics_font * graphics_named_font_new(struct graphics *gra, char *font,
  */
 void graphics_free(struct graphics *gra)
 {
+       if (!gra)
+               return;
        gra->meth.graphics_destroy(gra->priv);
        g_free(gra->default_font);
        graphics_font_destroy_all(gra);