modutils-24: use xasprintf and xzalloc where appropriate,

 remove unreachanble code
build system: correct some dependencies in config system
init: convert one #if into if() - for Rob.

function                                             old     new   delta
obj_string_patch                                     136     129      -7
bb_init_module_24                                   4759    4615    -144
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-151)           Total: -151 bytes

1 files changed, 9 insertions, 9 deletions

diff --git a/init/init.c b/init/init.c
index 59d070950..ed01e71c0 100644
--- a/init/init.c
+++ b/init/init.c
@@ -780,16 +780,16 @@ static void reload_inittab(void)
                 for (a = init_action_list; a; a = a->next)
                         if (a->pid != 0)
                                 kill(a->pid, SIGTERM);
-#if CONFIG_FEATURE_KILL_DELAY
-                /* NB: parent will wait in NOMMU case */
-                if ((BB_MMU ? fork() : vfork()) == 0) { /* child */
-                        sleep(CONFIG_FEATURE_KILL_DELAY);
-                        for (a = init_action_list; a; a = a->next)
-                                if (a->pid != 0)
-                                        kill(a->pid, SIGKILL);
-                        _exit(EXIT_SUCCESS);
+                if (CONFIG_FEATURE_KILL_DELAY) {
+                        /* NB: parent will wait in NOMMU case */
+                        if ((BB_MMU ? fork() : vfork()) == 0) { /* child */
+                                sleep(CONFIG_FEATURE_KILL_DELAY);
+                                for (a = init_action_list; a; a = a->next)
+                                        if (a->pid != 0)
+                                                kill(a->pid, SIGKILL);
+                                _exit(EXIT_SUCCESS);
+                        }
                 }
-#endif
         }
 
         /* Remove old and unused entries */