USB: ohci-jz4740: 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ohci-jz4740.c

@@ -221,7 +221,6 @@ static int jz4740_ohci_probe(struct platform_device *pdev)
 	return 0;
 
 err_disable:
-	platform_set_drvdata(pdev, NULL);
 	if (jz4740_ohci->vbus) {
 		regulator_disable(jz4740_ohci->vbus);
 		regulator_put(jz4740_ohci->vbus);
@@ -246,8 +245,6 @@ static int jz4740_ohci_remove(struct platform_device *pdev)
 
 	usb_remove_hcd(hcd);
 
-	platform_set_drvdata(pdev, NULL);
-
 	if (jz4740_ohci->vbus) {
 		regulator_disable(jz4740_ohci->vbus);
 		regulator_put(jz4740_ohci->vbus);