spi_bus_lock
spi_bus_lock(phy->spi_device->controller);
spi_bus_lock(dev->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(sigma_delta->spi->controller);
spi_bus_lock(sigma_delta->spi->controller);
spi_bus_lock(sigma_delta->spi->controller);
spi_bus_lock(ads1018->spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(spi->controller);
spi_bus_lock(host->spi->controller);
spi_bus_lock(priv->spidev->controller);
spi_bus_lock(ec_spi->spi->controller);
spi_bus_lock(ec_spi->spi->controller);
EXPORT_SYMBOL_GPL(spi_bus_lock);
extern int spi_bus_lock(struct spi_controller *ctlr);
ret = spi_bus_lock(spi->controller);