fix FS#12295

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30614 a1c6a512-1295-4272-9138-f99709370657

apps/gui/usb_screen.c

@@ -38,6 +38,7 @@
 #include "led.h"
 #include "appevents.h"
 #include "usb_screen.h"
+#include "skin_engine/skin_engine.h"
 
 #ifdef HAVE_LCD_BITMAP
 #include "bitmaps/usblogo.h"
@@ -265,8 +266,11 @@ void gui_usb_screen_run(bool early_usb)
         /* The font system leaves the .fnt fd's open, so we need for force close them all */
 #ifdef HAVE_LCD_BITMAP
         FOR_NB_SCREENS(i)
+        {
             font_unload(global_status.font_id[i]);
-    // FIXME    skin_font_init(); /* unload all the skin fonts */
+            global_status.font_id[i] = -1;
+        }
+        skin_unload_all();
 #endif
     }