kconfig: make use of menu_get_ext_help in gconfig

Futhermore, gconfig interface lack the "search a symbol" function, do later.

Signed-off-by: Cheng Renquan <crquan@gmail.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
[sam: fix SEGV in gconfig]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 931d782a2392..b74f74687005 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -528,5 +528,6 @@ void menu_get_ext_help(struct menu *menu, struct gstr *help)
         } else {
                 str_append(help, nohelp_text);
         }
-        get_symbol_str(help, sym);
+        if (sym)
+                get_symbol_str(help, sym);
 }