Add btd_error_not_ready()
diff --git a/audio/headset.c b/audio/headset.c
index 01f91db..af75f8b 100644
--- a/audio/headset.c
+++ b/audio/headset.c
@@ -1696,8 +1696,7 @@
 		return btd_error_already_connected(msg);
 
 	if (hs->hfp_handle && !ag.telephony_ready)
-		return g_dbus_create_error(msg, ERROR_INTERFACE ".NotReady",
-					"Telephony subsystem not ready");
+		return btd_error_not_ready(msg);
 
 	device->auto_connect = FALSE;
 
diff --git a/src/adapter.c b/src/adapter.c
index a36d2b1..cd53455 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -140,12 +140,6 @@
 static void adapter_set_pairable_timeout(struct btd_adapter *adapter,
 					guint interval);
 
-static inline DBusMessage *adapter_not_ready(DBusMessage *msg)
-{
-	return g_dbus_create_error(msg, ERROR_INTERFACE ".NotReady",
-			"Adapter is not ready");
-}
-
 static inline DBusMessage *not_in_progress(DBusMessage *msg, const char *str)
 {
 	return g_dbus_create_error(msg, ERROR_INTERFACE ".NotInProgress",
@@ -554,7 +548,7 @@
 	int err;
 
 	if (adapter->scan_mode == SCAN_DISABLED)
-		return adapter_not_ready(msg);
+		return btd_error_not_ready(msg);
 
 	if (pairable == adapter->pairable)
 		goto done;
@@ -1166,7 +1160,7 @@
 	int err;
 
 	if (!adapter->up)
-		return adapter_not_ready(msg);
+		return btd_error_not_ready(msg);
 
 	req = find_session(adapter->disc_sessions, sender);
 	if (req) {
@@ -1198,7 +1192,7 @@
 	const char *sender = dbus_message_get_sender(msg);
 
 	if (!adapter->up)
-		return adapter_not_ready(msg);
+		return btd_error_not_ready(msg);
 
 	req = find_session(adapter->disc_sessions, sender);
 	if (!req)
@@ -1575,7 +1569,7 @@
 		return btd_error_invalid_args(msg);
 
 	if (!adapter->up)
-		return adapter_not_ready(msg);
+		return btd_error_not_ready(msg);
 
 	if (adapter_find_device(adapter, address))
 		return btd_error_already_exists(msg);
@@ -1652,7 +1646,7 @@
 		return btd_error_invalid_args(msg);
 
 	if (!adapter->up)
-		return adapter_not_ready(msg);
+		return btd_error_not_ready(msg);
 
 	sender = dbus_message_get_sender(msg);
 	if (adapter->agent &&
diff --git a/src/error.c b/src/error.c
index ebfc614..c2d9baa 100644
--- a/src/error.c
+++ b/src/error.c
@@ -103,6 +103,12 @@
 					"Agent Not Available");
 }
 
+DBusMessage *btd_error_not_ready(DBusMessage *msg)
+{
+	return g_dbus_create_error(msg, ERROR_INTERFACE ".NotReady",
+					"Resource Not Ready");
+}
+
 DBusMessage *btd_error_failed(DBusMessage *msg, const char *str)
 {
 	return g_dbus_create_error(msg, ERROR_INTERFACE
diff --git a/src/error.h b/src/error.h
index ffd4332..cdb8919 100644
--- a/src/error.h
+++ b/src/error.h
@@ -39,4 +39,5 @@
 DBusMessage *btd_error_not_authorized(DBusMessage *msg);
 DBusMessage *btd_error_no_such_adapter(DBusMessage *msg);
 DBusMessage *btd_error_agent_not_available(DBusMessage *msg);
+DBusMessage *btd_error_not_ready(DBusMessage *msg);
 DBusMessage *btd_error_failed(DBusMessage *msg, const char *str);