a question about gtkfontsel.c

Hi all:
I met some questions when I read the gdk.
It is from gtkfontsel.c

I've found that 'temp_info.family' has been allocated some memory
with g_strdup() and i can't find where it was freed?

Is there anybody can tell me?

static void
gtk_font_selection_insert_font (GSList        *fontnames[],
    gint        *ntable,
    gchar        *fontname)
{
FontInfo *table;
FontInfo temp_info;
.......

temp_info.family = family_exists ? family : g_strdup(family);
temp_info.foundry = foundry;
temp_fontname = g_slist_prepend (NULL, fontname);

(*ntable)++;

if (*ntable > 1)
    {
      upper = *ntable - 1;
      while (lower != upper)
{
   table[upper] = table[upper-1];
   fontnames[upper] = fontnames[upper-1];
   upper--;
}
    }
table[lower] = temp_info;
fontnames[lower] = temp_fontname;
}

i am victor,thank you! 11111