core/main: correct retval for reexec/switch-root/soft-reboot

For these objectives we ought to execve() at the end, i.e. if we
ever hit the return path something went wrong in do_reexecute().
Let's properly report that via retval.

diff --git a/src/core/main.c b/src/core/main.c
index 4db7ad15d257a3f6f3b65430a515057a3bd650fe..89b283cca21f24ae739d4efc1e798434e960b69a 100644 (file)
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -2235,7 +2235,7 @@ static int invoke_main_loop(
 
                         log_notice("Reexecuting.");
 
-                        *ret_retval = EXIT_SUCCESS;
+                        *ret_retval = EXIT_FAILURE;
                         *ret_switch_root_dir = *ret_switch_root_init = NULL;
 
                         return objective;
@@ -2258,7 +2258,7 @@ static int invoke_main_loop(
 
                         log_notice("Switching root.");
 
-                        *ret_retval = EXIT_SUCCESS;
+                        *ret_retval = EXIT_FAILURE;
 
                         /* Steal the switch root parameters */
                         *ret_switch_root_dir = TAKE_PTR(m->switch_root);
@@ -2278,7 +2278,7 @@ static int invoke_main_loop(
 
                         log_notice("Soft-rebooting.");
 
-                        *ret_retval = EXIT_SUCCESS;
+                        *ret_retval = EXIT_FAILURE;
                         *ret_switch_root_dir = TAKE_PTR(m->switch_root);
                         *ret_switch_root_init = NULL;