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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>
hifive-unleashed-5.1
Jani Nikula 2010-04-29 10:55:11 +03:00 committed by Liam Girdwood
parent 47bd53f0e8
commit d4033b54fc
1 changed files with 5 additions and 30 deletions
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35
drivers/regulator/core.c
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@ -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 */