ACPI: PM: s2idle: Rearrange lps0_device_attach()

	guid_parse(ACPI_LPS0_DSM_UUID, &lps0_dsm_guid);

	/* Check if the _DSM is present and as expected. */

	out_obj = acpi_evaluate_dsm(adev->handle, &lps0_dsm_guid, 1, 0, NULL);

	if (out_obj && out_obj->type == ACPI_TYPE_BUFFER) {

		char bitmask = *(char *)out_obj->buffer.pointer;

		lps0_dsm_func_mask = bitmask;

		lps0_device_handle = adev->handle;

		/*

		 * Use suspend-to-idle by default if the default

		 * suspend mode was not set from the command line.

		 */

		if (mem_sleep_default > PM_SUSPEND_MEM)

			mem_sleep_current = PM_SUSPEND_TO_IDLE;

		acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n",

				  bitmask);

	} else {

	if (!out_obj || out_obj->type != ACPI_TYPE_BUFFER) {

		acpi_handle_debug(adev->handle,

				  "_DSM function 0 evaluation failed\n");

		return 0;

	}

	lps0_dsm_func_mask = *(char *)out_obj->buffer.pointer;

	ACPI_FREE(out_obj);

	acpi_handle_debug(adev->handle, "_DSM function mask: 0x%x\n",

			  lps0_dsm_func_mask);

	lps0_device_handle = adev->handle;

	lpi_device_get_constraints();

	/*

	 * Use suspend-to-idle by default if the default suspend mode was not

	 * set from the command line.

	 */

	if (mem_sleep_default > PM_SUSPEND_MEM)

		mem_sleep_current = PM_SUSPEND_TO_IDLE;

	return 0;

}