Commit 
0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 
        struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev);
        const struct gpio_tilt_platform_data *pdata = tdev->pdata;
 
-       platform_set_drvdata(pdev, NULL);
-
        input_unregister_polled_device(tdev->poll_dev);
        input_free_polled_device(tdev->poll_dev);