res_fax: unregister manager actions on unload

* Unregister manager actions FAXSessions, FAXSession and FAXStats at unload.
* Update ast_manager_register2 use ao2_t_alloc tagged with the action name.

ASTERISK-24058 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/3831/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419268 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/manager.c

@@ -6317,7 +6317,7 @@ int ast_manager_register2(const char *action, int auth, int (*func)(struct manse
 {
 	struct manager_action *cur;
 
-	cur = ao2_alloc(sizeof(*cur), action_destroy);
+	cur = ao2_t_alloc(sizeof(*cur), action_destroy, action);
 	if (!cur) {
 		return -1;
 	}

res/res_fax.c

@@ -4553,6 +4553,10 @@ static int unload_module(void)
 		ast_log(LOG_WARNING, "failed to unregister '%s'\n", app_receivefax);
 	}
 
+	ast_manager_unregister("FAXSessions");
+	ast_manager_unregister("FAXSession");
+	ast_manager_unregister("FAXStats");
+
 	if (fax_logger_level != -1) {
 		ast_logger_unregister_level("FAX");
 	}