samples: nrf9160: lwm2m_client: Don't load all settings on main.c

Separate submodules should register their own handler and load settings
once they are ready to do so. Don't expect application to call
settings_load().

Signed-off-by: Seppo Takalo <[email protected]>

Author: SeppoTakalo

samples/nrf9160/lwm2m_client/src/main.c

@@ -322,9 +322,6 @@ void main(void)
 	ret = fota_settings_init();
 	if (ret < 0) {
 		LOG_WRN("Unable to init settings (%d)", ret);
-	} else {
-		/* Load *all* persistent settings */
-		settings_load();
 	}
 	/* Modem FW update needs to be verified before modem is used. */
 	lwm2m_verify_modem_fw_update();

subsys/net/lib/lwm2m_client_utils/fota/settings.c

@@ -79,5 +79,11 @@ int fota_settings_init(void)
 		return err;
 	}
 
+	err = settings_load_subtree(fota_settings.name);
+	if (err) {
+		LOG_ERR("settings_load_subtree() failed, %d", err);
+		return err;
+	}
+
 	return 0;
 }