kconfig: add xstrdup() helper

[carl9170fw.git] / config / zconf.y

diff --git a/config/zconf.y b/config/zconf.y
index 1aa9859726b365f732787d54d350d560c8a94f1a..250d58e7d046a244fd195ea546f48fabdb8ba01e 100644 (file)
--- a/config/zconf.y
+++ b/config/zconf.y
@@ -127,7 +127,7 @@ no_mainmenu_stmt: /* empty */
         * later regardless of whether it comes from the 'prompt' in
         * mainmenu_stmt or here
         */
-       menu_add_prompt(P_MENU, strdup("Linux Kernel Configuration"), NULL);
+       menu_add_prompt(P_MENU, xstrdup("Linux Kernel Configuration"), NULL);
 };
 
 
@@ -436,6 +436,12 @@ help: help_start T_HELPTEXT
                zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
                           current_entry->sym->name ?: "<choice>");
        }
+
+       /* Is the help text empty or all whitespace? */
+       if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
+               zconfprint("warning: '%s' defined with blank help text",
+                          current_entry->sym->name ?: "<choice>");
+
        current_entry->help = $2;
 };