dev_attr_hpload_ac_r 2317 sound/soc/codecs/cs43130.c ret = device_create_file(component->dev, &dev_attr_hpload_ac_r); dev_attr_hpload_ac_r 2603 sound/soc/codecs/cs43130.c device_remove_file(&client->dev, &dev_attr_hpload_ac_r);