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path: root/drivers/regulator/core.c
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Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r--drivers/regulator/core.c46
1 files changed, 26 insertions, 20 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index b2cb4f497ef6..bd6991a99593 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1192,7 +1192,7 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
const char *consumer_dev_name,
const char *supply)
{
- struct regulator_map *node;
+ struct regulator_map *node, *new_node;
int has_dev;
if (supply == NULL)
@@ -1203,6 +1203,22 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
else
has_dev = 0;
+ new_node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL);
+ if (new_node == NULL)
+ return -ENOMEM;
+
+ new_node->regulator = rdev;
+ new_node->supply = supply;
+
+ if (has_dev) {
+ new_node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
+ if (new_node->dev_name == NULL) {
+ kfree(new_node);
+ return -ENOMEM;
+ }
+ }
+
+ mutex_lock(&regulator_list_mutex);
list_for_each_entry(node, &regulator_map_list, list) {
if (node->dev_name && consumer_dev_name) {
if (strcmp(node->dev_name, consumer_dev_name) != 0)
@@ -1220,26 +1236,19 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
node->regulator->desc->name,
supply,
dev_name(&rdev->dev), rdev_get_name(rdev));
- return -EBUSY;
+ goto fail;
}
- node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL);
- if (node == NULL)
- return -ENOMEM;
-
- node->regulator = rdev;
- node->supply = supply;
-
- if (has_dev) {
- node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
- if (node->dev_name == NULL) {
- kfree(node);
- return -ENOMEM;
- }
- }
+ list_add(&new_node->list, &regulator_map_list);
+ mutex_unlock(&regulator_list_mutex);
- list_add(&node->list, &regulator_map_list);
return 0;
+
+fail:
+ mutex_unlock(&regulator_list_mutex);
+ kfree(new_node->dev_name);
+ kfree(new_node);
+ return -EBUSY;
}
static void unset_regulator_supplies(struct regulator_dev *rdev)
@@ -4095,19 +4104,16 @@ regulator_register(const struct regulator_desc *regulator_desc,
/* add consumers devices */
if (init_data) {
- mutex_lock(&regulator_list_mutex);
for (i = 0; i < init_data->num_consumer_supplies; i++) {
ret = set_consumer_device_supply(rdev,
init_data->consumer_supplies[i].dev_name,
init_data->consumer_supplies[i].supply);
if (ret < 0) {
- mutex_unlock(&regulator_list_mutex);
dev_err(dev, "Failed to set supply %s\n",
init_data->consumer_supplies[i].supply);
goto unset_supplies;
}
}
- mutex_unlock(&regulator_list_mutex);
}
if (!rdev->desc->ops->get_voltage &&