regulator: rk808: Fix memory leak

The memory allocated in rk808_regulator_probe() needs to be freed when the
module is unloaded. Thus pass &pdev->dev rather than &client->dev to
devm_kzalloc.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/rk808-regulator.c

@@ -342,7 +342,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 	int ret = 0;
 
 	if (!pdata) {
-		pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
+		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata)
 			return -ENOMEM;
 	}