lp3944_data
struct lp3944_data *data = i2c_get_clientdata(led->client);
struct lp3944_data *data,
struct lp3944_data *data;
data = devm_kzalloc(&client->dev, sizeof(struct lp3944_data),
struct lp3944_data *data = i2c_get_clientdata(client);