c
int spi_sync(struct spi_device *spi, struct spi_message *message)
{
    int ret;

    mutex_lock(&spi->controller->bus_lock_mutex);

    ret = __spi_sync(spi, message);
    if (ret != 0) {
        // Handle the error
        goto unlock;
    }


unlock:
    mutex_unlock(&spi->controller->bus_lock_mutex);
    return ret;
}
