regulator: max8997: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 10 insertions, 28 deletions

diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index df20069f0537..059e8ed7fa24 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -1081,7 +1081,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
                                         pdata->buck1_voltage[i] +
                                         buck1245_voltage_map_desc.step);
                 if (ret < 0)
-                        goto err_out;
+                        return ret;
 
                 max8997->buck2_vol[i] = ret =
                         max8997_get_voltage_proper_val(
@@ -1090,7 +1090,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
                                         pdata->buck2_voltage[i] +
                                         buck1245_voltage_map_desc.step);
                 if (ret < 0)
-                        goto err_out;
+                        return ret;
 
                 max8997->buck5_vol[i] = ret =
                         max8997_get_voltage_proper_val(
@@ -1099,7 +1099,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
                                         pdata->buck5_voltage[i] +
                                         buck1245_voltage_map_desc.step);
                 if (ret < 0)
-                        goto err_out;
+                        return ret;
 
                 if (max_buck1 < max8997->buck1_vol[i])
                         max_buck1 = max8997->buck1_vol[i];
@@ -1143,24 +1143,23 @@ static int max8997_pmic_probe(struct platform_device *pdev)
                                 !gpio_is_valid(pdata->buck125_gpios[1]) ||
                                 !gpio_is_valid(pdata->buck125_gpios[2])) {
                         dev_err(&pdev->dev, "GPIO NOT VALID\n");
-                        ret = -EINVAL;
-                        goto err_out;
+                        return -EINVAL;
                 }
 
                 ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[0],
                                         "MAX8997 SET1");
                 if (ret)
-                        goto err_out;
+                        return ret;
 
                 ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[1],
                                         "MAX8997 SET2");
                 if (ret)
-                        goto err_out;
+                        return ret;
 
                 ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[2],
                                 "MAX8997 SET3");
                 if (ret)
-                        goto err_out;
+                        return ret;
 
                 gpio_direction_output(pdata->buck125_gpios[0],
                                 (max8997->buck125_gpioindex >> 2)
@@ -1205,33 +1204,17 @@ static int max8997_pmic_probe(struct platform_device *pdev)
                 config.driver_data = max8997;
                 config.of_node = pdata->regulators[i].reg_node;
 
-                rdev[i] = regulator_register(&regulators[id], &config);
+                rdev[i] = devm_regulator_register(&pdev->dev, &regulators[id],
+                                                  &config);
                 if (IS_ERR(rdev[i])) {
-                        ret = PTR_ERR(rdev[i]);
                         dev_err(max8997->dev, "regulator init failed for %d\n",
                                         id);
                         rdev[i] = NULL;
-                        goto err;
+                        return PTR_ERR(rdev[i]);
                 }
         }
 
         return 0;
-err:
-        while (--i >= 0)
-                regulator_unregister(rdev[i]);
-err_out:
-        return ret;
-}
-
-static int max8997_pmic_remove(struct platform_device *pdev)
-{
-        struct max8997_data *max8997 = platform_get_drvdata(pdev);
-        struct regulator_dev **rdev = max8997->rdev;
-        int i;
-
-        for (i = 0; i < max8997->num_regulators; i++)
-                regulator_unregister(rdev[i]);
-        return 0;
 }
 
 static const struct platform_device_id max8997_pmic_id[] = {
@@ -1246,7 +1229,6 @@ static struct platform_driver max8997_pmic_driver = {
                 .owner = THIS_MODULE,
         },
         .probe = max8997_pmic_probe,
-        .remove = max8997_pmic_remove,
         .id_table = max8997_pmic_id,
 };