puzzled

./Documentation/firmware_class/firmware_sample_firmware_class.c:        retval = class_device_register(class_dev);
./Documentation/firmware_class/firmware_sample_firmware_class.c:                printk(KERN_ERR "%s: class_device_register failed\n",
./drivers/media/video/videodev.c:       class_device_register(&vfd->class_dev);
./drivers/mfd/ucb1x00-core.c:   ret = class_device_register(&ucb->cdev);
./drivers/i2c/i2c-core.c:       class_device_register(&adap->class_dev);
./drivers/i2c/busses/i2c-isa.c: class_device_register(&isa_adapter.class_dev);
./drivers/i2c/i2c-dev.c:        retval = class_device_register(&i2c_dev->class_dev);
./drivers/base/firmware_class.c:        retval = class_device_register(class_dev);
./drivers/base/firmware_class.c:                printk(KERN_ERR "%s: class_device_register failed\n",
./drivers/base/class.c:int class_device_register(struct class_device *class_dev)
./drivers/base/class.c: retval = class_device_register(class_dev);
./drivers/base/class.c:EXPORT_SYMBOL_GPL(class_device_register);
./drivers/infiniband/core/sysfs.c:      ret = class_device_register(class_dev);
./drivers/infiniband/core/user_mad.c:   if (class_device_register(&port->class_dev))
./drivers/infiniband/core/user_mad.c:   if (class_device_register(&port->sm_class_dev))
./drivers/infiniband/core/uverbs_main.c:        if (class_device_register(&uverbs_dev->class_dev))
./drivers/char/drm/drm_sysfs.c: retval = class_device_register(&s_dev->class_dev);
./drivers/ieee1394/hosts.c:     class_device_register(&h->class_dev);
./drivers/ieee1394/nodemgr.c:   class_device_register(&ne->class_dev);
./drivers/ieee1394/nodemgr.c:   class_device_register(&ud->class_dev);
./drivers/pci/probe.c:  class_device_register(&child->class_dev);
./drivers/pci/probe.c:  error = class_device_register(&b->class_dev);
./drivers/pcmcia/cs.c:  ret = class_device_register(&skt->dev);
./drivers/message/i2o/device.c: class_device_register(&dev->classdev);
./drivers/video/backlight/lcd.c:        rc = class_device_register(&new_ld->class_dev);
./drivers/video/backlight/backlight.c:  rc = class_device_register(&new_bd->class_dev);
./include/linux/device.h:extern int class_device_register(struct class_device *);
./net/bluetooth/hci_sysfs.c:    err = class_device_register(cdev);
./net/core/net-sysfs.c: if ((ret = class_device_register(class_dev)))
[patrick@guru linux-2.6.14.3]$