spi_unregister_device
spi_unregister_device(spi);
spi_unregister_device(spi);
spi_unregister_device(ezport);
spi_unregister_device(smi->spi_devs[smi->spi_num]);
spi_unregister_device(spi_devs[i]);
spi_unregister_device(ch341->spidev);
spi_unregister_device(device);
spi_unregister_device(to_spi_device(dev));
spi_unregister_device(spi);
spi_unregister_device(spi);
EXPORT_SYMBOL_GPL(spi_unregister_device);
extern void spi_unregister_device(struct spi_device *spi);