static int machxo2_cleanup()

in machxo2-spi.c [135:172]

• 33 lines of code
• 4 McCabe index (conditional complexity)

static int machxo2_cleanup(struct fpga_manager *mgr)
{
	struct spi_device *spi = mgr->priv;
	struct spi_message msg;
	struct spi_transfer tx[2];
	static const u8 erase[] = ISC_ERASE;
	static const u8 refresh[] = LSC_REFRESH;
	int ret;

	memset(tx, 0, sizeof(tx));
	spi_message_init(&msg);
	tx[0].tx_buf = &erase;
	tx[0].len = sizeof(erase);
	spi_message_add_tail(&tx[0], &msg);
	ret = spi_sync(spi, &msg);
	if (ret)
		goto fail;

	ret = wait_until_not_busy(spi);
	if (ret)
		goto fail;

	spi_message_init(&msg);
	tx[1].tx_buf = &refresh;
	tx[1].len = sizeof(refresh);
	tx[1].delay.value = MACHXO2_REFRESH_USEC;
	tx[1].delay.unit = SPI_DELAY_UNIT_USECS;
	spi_message_add_tail(&tx[1], &msg);
	ret = spi_sync(spi, &msg);
	if (ret)
		goto fail;

	return 0;
fail:
	dev_err(&mgr->dev, "Cleanup failed\n");

	return ret;
}