convert error to btd_error_not_supported()
diff --git a/input/device.c b/input/device.c
index f7f96be..3c3f9fd 100644
--- a/input/device.c
+++ b/input/device.c
@@ -315,12 +315,6 @@
 	return FALSE;
 }
 
-static inline DBusMessage *not_supported(DBusMessage *msg)
-{
-	return g_dbus_create_error(msg, ERROR_INTERFACE ".Failed",
-							"Not supported");
-}
-
 static inline DBusMessage *already_connected(DBusMessage *msg)
 {
 	return g_dbus_create_error(msg, ERROR_INTERFACE ".AlreadyConnected",
@@ -937,7 +931,7 @@
 
 	iconn = find_connection(idev->connections, "HID");
 	if (!iconn)
-		return not_supported(msg);
+		return btd_error_not_supported(msg);
 
 	if (iconn->pending_connect)
 		return btd_error_in_progress(msg);
diff --git a/network/connection.c b/network/connection.c
index d24d96c..a652b98 100644
--- a/network/connection.c
+++ b/network/connection.c
@@ -393,7 +393,7 @@
 	id = bnep_service_id(svc);
 	nc = find_connection(peer->connections, id);
 	if (!nc)
-		return not_supported(msg);
+		return btd_error_not_supported(msg);
 
 	if (nc->state != DISCONNECTED)
 		return already_connected(msg);