regulator: db8500-prcmu: small fixes

Small cleanups for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c
index e5f7b8fe..2bb8f45 100644
--- a/drivers/regulator/db8500-prcmu.c
+++ b/drivers/regulator/db8500-prcmu.c
@@ -266,7 +266,7 @@
  * Regulator information
  */
 static struct db8500_regulator_info
-		db8500_regulator_info[DB8500_NUM_REGULATORS] = {
+db8500_regulator_info[DB8500_NUM_REGULATORS] = {
 	[DB8500_REGULATOR_VAPE] = {
 		.desc = {
 			.name	= "db8500-vape",
@@ -492,11 +492,9 @@
 				info->desc.name, err);
 
 			/* if failing, unregister all earlier regulators */
-			i--;
-			while (i >= 0) {
+			while (--i >= 0) {
 				info = &db8500_regulator_info[i];
 				regulator_unregister(info->rdev);
-				i--;
 			}
 			return err;
 		}
@@ -536,13 +534,7 @@
 
 static int __init db8500_regulator_init(void)
 {
-	int ret;
-
-	ret = platform_driver_register(&db8500_regulator_driver);
-	if (ret < 0)
-		return -ENODEV;
-
-	return 0;
+	return platform_driver_register(&db8500_regulator_driver);
 }
 
 static void __exit db8500_regulator_exit(void)