ipc-server: free clients at destroy

sway/ipc-server.c

@@ -64,6 +64,10 @@ static void handle_display_destroy(struct wl_listener *listener, void *data) {
 	close(ipc_socket);
 	unlink(ipc_sockaddr->sun_path);
 
+	while (ipc_client_list->length) {
+		struct ipc_client *client = ipc_client_list->items[0];
+		ipc_client_disconnect(client);
+	}
 	list_free(ipc_client_list);
 
 	if (ipc_sockaddr) {
@@ -480,6 +484,7 @@ void ipc_client_handle_command(struct ipc_client *client) {
 		const char *json = cmd_results_to_json(results);
 		char reply[256];
 		int length = snprintf(reply, sizeof(reply), "%s", json);
+		free(json);
 		client_valid = ipc_send_reply(client, reply, (uint32_t)length);
 		free_cmd_results(results);
 		goto exit_cleanup;