[PATCH] kconfig: improve error handling in the parser

Add a few error tokens to the parser to catch common errors and print more
descriptive error messages.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index c2a423a..0fce20c 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -61,10 +61,11 @@
 {
 }
 
-void menu_add_menu(void)
+struct menu *menu_add_menu(void)
 {
-	current_menu = current_entry;
+	menu_end_entry();
 	last_entry_ptr = &current_entry->list;
+	return current_menu = current_entry;
 }
 
 void menu_end_menu(void)