[PATCH BlueZ 1/2] core: Fixes order InterfaceAdded

[Luiz Augusto von Dentz <luiz.dentz@gmail.com>]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Registering on the callback of MGMT_OP_READ_ADV_FEATURES causes
InterfacesAdded to be reschedule after the device objects which causes
tools such as PulseAudio to consider it invalid.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1534857
---
 src/advertising.c | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/src/advertising.c b/src/advertising.c
index 94a8c4050..970c3d87b 100644
--- a/src/advertising.c
+++ b/src/advertising.c
@@ -1032,14 +1032,6 @@ static void read_adv_features_callback(uint8_t status, uint16_t length,
 	if (manager->max_ads == 0)
 		return;
 
-	if (!g_dbus_register_interface(btd_get_dbus_connection(),
-					adapter_get_path(manager->adapter),
-					LE_ADVERTISING_MGR_IFACE, methods,
-					NULL, properties, manager, NULL)) {
-		error("Failed to register " LE_ADVERTISING_MGR_IFACE);
-		return;
-	}
-
 	/* Reset existing instances */
 	if (feat->num_instances)
 		remove_advertising(manager, 0);
@@ -1061,19 +1053,29 @@ static struct btd_adv_manager *manager_create(struct btd_adapter *adapter)
 	}
 
 	manager->mgmt_index = btd_adapter_get_index(adapter);
+	manager->clients = queue_new();
+	manager->supported_flags = MGMT_ADV_FLAG_LOCAL_NAME;
+
+	if (!g_dbus_register_interface(btd_get_dbus_connection(),
+					adapter_get_path(manager->adapter),
+					LE_ADVERTISING_MGR_IFACE, methods,
+					NULL, properties, manager, NULL)) {
+		error("Failed to register " LE_ADVERTISING_MGR_IFACE);
+		goto fail;
+	}
 
 	if (!mgmt_send(manager->mgmt, MGMT_OP_READ_ADV_FEATURES,
 				manager->mgmt_index, 0, NULL,
 				read_adv_features_callback, manager, NULL)) {
 		error("Failed to read advertising features");
-		manager_destroy(manager);
-		return NULL;
+		goto fail;
 	}
 
-	manager->clients = queue_new();
-	manager->supported_flags = MGMT_ADV_FLAG_LOCAL_NAME;
-
 	return manager;
+
+fail:
+	manager_destroy(manager);
+	return NULL;
 }
 
 struct btd_adv_manager *btd_adv_manager_new(struct btd_adapter *adapter)
-- 
2.14.3