diff options
| -rw-r--r-- | drivers/regulator/core.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 79a6910eb89..e38db55600e 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -872,6 +872,7 @@ static int set_consumer_device_supply(struct regulator_dev *rdev, const char *supply) { struct regulator_map *node; + int has_dev; if (consumer_dev && consumer_dev_name) return -EINVAL; @@ -882,6 +883,11 @@ static int set_consumer_device_supply(struct regulator_dev *rdev, if (supply == NULL) return -EINVAL; + if (consumer_dev_name != NULL) + has_dev = 1; + else + has_dev = 0; + list_for_each_entry(node, ®ulator_map_list, list) { if (consumer_dev_name != node->dev_name) continue; @@ -896,17 +902,19 @@ static int set_consumer_device_supply(struct regulator_dev *rdev, return -EBUSY; } - node = kmalloc(sizeof(struct regulator_map), GFP_KERNEL); + node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL); if (node == NULL) return -ENOMEM; node->regulator = rdev; - node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL); node->supply = supply; - if (node->dev_name == NULL) { - kfree(node); - return -ENOMEM; + if (has_dev) { + node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL); + if (node->dev_name == NULL) { + kfree(node); + return -ENOMEM; + } } list_add(&node->list, ®ulator_map_list); |