The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
 err_free_tx_dma:
        free_dma(tx_dma);
 err_put_master:
-       platform_set_drvdata(pdev, NULL);
        spi_master_put(master);
 
        return ret;
        free_dma(drv_data->rx_dma);
        free_dma(drv_data->tx_dma);
 
-       platform_set_drvdata(pdev, NULL);
        spi_unregister_master(drv_data->master);
        return 0;
 }