static int ps3_sys_manager_handle_cmd()

in ps3-sys-manager.c [485:518]

• 27 lines of code
• 5 McCabe index (conditional complexity)

static int ps3_sys_manager_handle_cmd(struct ps3_system_bus_device *dev)
{
	int result;
	struct {
		u8 version;
		u8 type;
		u8 reserved_1[14];
	} cmd;

	BUILD_BUG_ON(sizeof(cmd) != 16);

	dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);

	result = ps3_vuart_read(dev, &cmd, sizeof(cmd));
	BUG_ON(result && "need to retry here");

	if (result)
		return result;

	if (cmd.version != 1) {
		dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n",
			__func__, __LINE__, cmd.version);
		return -EIO;
	}

	if (cmd.type != PS3_SM_CMD_SHUTDOWN) {
		dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n",
			__func__, __LINE__, cmd.type);
		return -EIO;
	}

	ps3_sys_manager_send_response(dev, 0);
	return 0;
}