regulator/ab8500: move dereference below the check for NULL

I moved the dereference of "ab8500" below the check for NULL.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/ab8500.c

@@ -344,13 +344,14 @@ static inline struct ab8500_regulator_info *find_regulator_info(int id)
 static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
 {
 	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
-	struct ab8500_platform_data *pdata = dev_get_platdata(ab8500->dev);
+	struct ab8500_platform_data *pdata;
 	int i, err;
 
 	if (!ab8500) {
 		dev_err(&pdev->dev, "null mfd parent\n");
 		return -EINVAL;
 	}
+	pdata = dev_get_platdata(ab8500->dev);
 
 	/* register all regulators */
 	for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {