Regulators: pcap-regulator - clean up driver data after removal

It is a good tone to reset driver data after unbinding the device.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/pcap-regulator.c

@@ -288,6 +288,7 @@ static int __devexit pcap_regulator_remove(struct platform_device *pdev)
 	struct regulator_dev *rdev = platform_get_drvdata(pdev);
 
 	regulator_unregister(rdev);
+	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
@@ -295,6 +296,7 @@ static int __devexit pcap_regulator_remove(struct platform_device *pdev)
 static struct platform_driver pcap_regulator_driver = {
 	.driver = {
 		.name	= "pcap-regulator",
+		.owner	= THIS_MODULE,
 	},
 	.probe	= pcap_regulator_probe,
 	.remove	= __devexit_p(pcap_regulator_remove),