serial: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Barry Song <baohua.song@csr.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Huang Shijie <b32955@freescale.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c
index 7e277a5384a7..b6b7aca5707a 100644
--- a/drivers/tty/serial/pnx8xxx_uart.c
+++ b/drivers/tty/serial/pnx8xxx_uart.c
@@ -801,8 +801,6 @@ static int pnx8xxx_serial_remove(struct platform_device *pdev)
 {
         struct pnx8xxx_port *sport = platform_get_drvdata(pdev);
 
-        platform_set_drvdata(pdev, NULL);
-
         if (sport)
                 uart_remove_one_port(&pnx8xxx_reg, &sport->port);