regulator: simplify regulator_register() error handling

Simply remove all consumer supplies for the regulator on errors. Remove
unset_consumer_device_supply() which is no longer used.

Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 5 insertions, 30 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a50672f33afa..98e5d14f94f3 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -981,29 +981,6 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
         return 0;
 }
 
-static void unset_consumer_device_supply(struct regulator_dev *rdev,
-        const char *consumer_dev_name, struct device *consumer_dev)
-{
-        struct regulator_map *node, *n;
-
-        if (consumer_dev && !consumer_dev_name)
-                consumer_dev_name = dev_name(consumer_dev);
-
-        list_for_each_entry_safe(node, n, &regulator_map_list, list) {
-                if (rdev != node->regulator)
-                        continue;
-
-                if (consumer_dev_name && node->dev_name &&
-                    strcmp(consumer_dev_name, node->dev_name))
-                        continue;
-
-                list_del(&node->list);
-                kfree(node->dev_name);
-                kfree(node);
-                return;
-        }
-}
-
 static void unset_regulator_supplies(struct regulator_dev *rdev)
 {
         struct regulator_map *node, *n;
@@ -2375,13 +2352,8 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
                         init_data->consumer_supplies[i].dev,
                         init_data->consumer_supplies[i].dev_name,
                         init_data->consumer_supplies[i].supply);
-                if (ret < 0) {
-                        for (--i; i >= 0; i--)
-                                unset_consumer_device_supply(rdev,
-                                    init_data->consumer_supplies[i].dev_name,
-                                    init_data->consumer_supplies[i].dev);
-                        goto scrub;
-                }
+                if (ret < 0)
+                        goto unset_supplies;
         }
 
         list_add(&rdev->list, &regulator_list);
@@ -2389,6 +2361,9 @@ out:
         mutex_unlock(&regulator_list_mutex);
         return rdev;
 
+unset_supplies:
+        unset_regulator_supplies(rdev);
+
 scrub:
         device_unregister(&rdev->dev);
         /* device core frees rdev */