40 struct i2c_dev {  struct
51 static struct i2c_dev *i2c_dev_get_by_minor(unsigned index)  in i2c_dev_get_by_minor()  argument
53 	struct i2c_dev *i2c_dev;  in i2c_dev_get_by_minor()  local
56 	list_for_each_entry(i2c_dev, &i2c_dev_list, list) {  in i2c_dev_get_by_minor()
57 		if (i2c_dev->adap->nr == index)  in i2c_dev_get_by_minor()
60 	i2c_dev = NULL;  in i2c_dev_get_by_minor()
63 	return i2c_dev;  in i2c_dev_get_by_minor()
66 static struct i2c_dev *get_free_i2c_dev(struct i2c_adapter *adap)  in get_free_i2c_dev()
68 	struct i2c_dev *i2c_dev;  in get_free_i2c_dev()  local
76 	i2c_dev = kzalloc(sizeof(*i2c_dev), GFP_KERNEL);  in get_free_i2c_dev()
77 	if (!i2c_dev)  in get_free_i2c_dev()
79 	i2c_dev->adap = adap;  in get_free_i2c_dev()
82 	list_add_tail(&i2c_dev->list, &i2c_dev_list);  in get_free_i2c_dev()
84 	return i2c_dev;  in get_free_i2c_dev()
87 static void put_i2c_dev(struct i2c_dev *i2c_dev, bool del_cdev)  in put_i2c_dev()  argument
90 	list_del(&i2c_dev->list);  in put_i2c_dev()
93 		cdev_device_del(&i2c_dev->cdev, &i2c_dev->dev);  in put_i2c_dev()
94 	put_device(&i2c_dev->dev);  in put_i2c_dev()
100 	struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(dev->devt));  in name_show()  local
102 	if (!i2c_dev)  in name_show()
104 	return sprintf(buf, "%s\n", i2c_dev->adap->name);  in name_show()
635 	struct i2c_dev *i2c_dev;  in i2cdev_dev_release()  local
637 	i2c_dev = container_of(dev, struct i2c_dev, dev);  in i2cdev_dev_release()
638 	kfree(i2c_dev);  in i2cdev_dev_release()
644 	struct i2c_dev *i2c_dev;  in i2cdev_attach_adapter()  local
651 	i2c_dev = get_free_i2c_dev(adap);  in i2cdev_attach_adapter()
652 	if (IS_ERR(i2c_dev))  in i2cdev_attach_adapter()
653 		return PTR_ERR(i2c_dev);  in i2cdev_attach_adapter()
655 	cdev_init(&i2c_dev->cdev, &i2cdev_fops);  in i2cdev_attach_adapter()
656 	i2c_dev->cdev.owner = THIS_MODULE;  in i2cdev_attach_adapter()
658 	device_initialize(&i2c_dev->dev);  in i2cdev_attach_adapter()
659 	i2c_dev->dev.devt = MKDEV(I2C_MAJOR, adap->nr);  in i2cdev_attach_adapter()
660 	i2c_dev->dev.class = i2c_dev_class;  in i2cdev_attach_adapter()
661 	i2c_dev->dev.parent = &adap->dev;  in i2cdev_attach_adapter()
662 	i2c_dev->dev.release = i2cdev_dev_release;  in i2cdev_attach_adapter()
663 	dev_set_name(&i2c_dev->dev, "i2c-%d", adap->nr);  in i2cdev_attach_adapter()
665 	res = cdev_device_add(&i2c_dev->cdev, &i2c_dev->dev);  in i2cdev_attach_adapter()
667 		put_i2c_dev(i2c_dev, false);  in i2cdev_attach_adapter()
679 	struct i2c_dev *i2c_dev;  in i2cdev_detach_adapter()  local
685 	i2c_dev = i2c_dev_get_by_minor(adap->nr);  in i2cdev_detach_adapter()
686 	if (!i2c_dev) /* attach_adapter must have failed */  in i2cdev_detach_adapter()
689 	put_i2c_dev(i2c_dev, true);  in i2cdev_detach_adapter()