45 	struct tpm_chip *pos, *chip = NULL;  in tpm_chip_find_get()  local
53 			chip = pos;  in tpm_chip_find_get()
58 	return chip;  in tpm_chip_find_get()
69 	struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev);  in tpm_dev_release()  local
72 	clear_bit(chip->dev_num, dev_mask);  in tpm_dev_release()
74 	kfree(chip);  in tpm_dev_release()
90 	struct tpm_chip *chip;  in tpmm_chip_alloc()  local
92 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);  in tpmm_chip_alloc()
93 	if (chip == NULL)  in tpmm_chip_alloc()
96 	mutex_init(&chip->tpm_mutex);  in tpmm_chip_alloc()
97 	INIT_LIST_HEAD(&chip->list);  in tpmm_chip_alloc()
99 	chip->ops = ops;  in tpmm_chip_alloc()
102 	chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);  in tpmm_chip_alloc()
105 	if (chip->dev_num >= TPM_NUM_DEVICES) {  in tpmm_chip_alloc()
107 		kfree(chip);  in tpmm_chip_alloc()
111 	set_bit(chip->dev_num, dev_mask);  in tpmm_chip_alloc()
113 	scnprintf(chip->devname, sizeof(chip->devname), "tpm%d", chip->dev_num);  in tpmm_chip_alloc()
115 	chip->pdev = dev;  in tpmm_chip_alloc()
117 	dev_set_drvdata(dev, chip);  in tpmm_chip_alloc()
119 	chip->dev.class = tpm_class;  in tpmm_chip_alloc()
120 	chip->dev.release = tpm_dev_release;  in tpmm_chip_alloc()
121 	chip->dev.parent = chip->pdev;  in tpmm_chip_alloc()
123 	if (chip->dev_num == 0)  in tpmm_chip_alloc()
124 		chip->dev.devt = MKDEV(MISC_MAJOR, TPM_MINOR);  in tpmm_chip_alloc()
126 		chip->dev.devt = MKDEV(MAJOR(tpm_devt), chip->dev_num);  in tpmm_chip_alloc()
128 	dev_set_name(&chip->dev, "%s", chip->devname);  in tpmm_chip_alloc()
130 	device_initialize(&chip->dev);  in tpmm_chip_alloc()
132 	cdev_init(&chip->cdev, &tpm_fops);  in tpmm_chip_alloc()
133 	chip->cdev.owner = chip->pdev->driver->owner;  in tpmm_chip_alloc()
134 	chip->cdev.kobj.parent = &chip->dev.kobj;  in tpmm_chip_alloc()
136 	return chip;  in tpmm_chip_alloc()
140 static int tpm_dev_add_device(struct tpm_chip *chip)  in tpm_dev_add_device()  argument
144 	rc = cdev_add(&chip->cdev, chip->dev.devt, 1);  in tpm_dev_add_device()
146 		dev_err(&chip->dev,  in tpm_dev_add_device()
148 			chip->devname, MAJOR(chip->dev.devt),  in tpm_dev_add_device()
149 			MINOR(chip->dev.devt), rc);  in tpm_dev_add_device()
151 		device_unregister(&chip->dev);  in tpm_dev_add_device()
155 	rc = device_add(&chip->dev);  in tpm_dev_add_device()
157 		dev_err(&chip->dev,  in tpm_dev_add_device()
159 			chip->devname, MAJOR(chip->dev.devt),  in tpm_dev_add_device()
160 			MINOR(chip->dev.devt), rc);  in tpm_dev_add_device()
168 static void tpm_dev_del_device(struct tpm_chip *chip)  in tpm_dev_del_device()  argument
170 	cdev_del(&chip->cdev);  in tpm_dev_del_device()
171 	device_unregister(&chip->dev);  in tpm_dev_del_device()
174 static int tpm1_chip_register(struct tpm_chip *chip)  in tpm1_chip_register()  argument
178 	if (chip->flags & TPM_CHIP_FLAG_TPM2)  in tpm1_chip_register()
181 	rc = tpm_sysfs_add_device(chip);  in tpm1_chip_register()
185 	rc = tpm_add_ppi(chip);  in tpm1_chip_register()
187 		tpm_sysfs_del_device(chip);  in tpm1_chip_register()
191 	chip->bios_dir = tpm_bios_log_setup(chip->devname);  in tpm1_chip_register()
196 static void tpm1_chip_unregister(struct tpm_chip *chip)  in tpm1_chip_unregister()  argument
198 	if (chip->flags & TPM_CHIP_FLAG_TPM2)  in tpm1_chip_unregister()
201 	if (chip->bios_dir)  in tpm1_chip_unregister()
202 		tpm_bios_log_teardown(chip->bios_dir);  in tpm1_chip_unregister()
204 	tpm_remove_ppi(chip);  in tpm1_chip_unregister()
206 	tpm_sysfs_del_device(chip);  in tpm1_chip_unregister()
220 int tpm_chip_register(struct tpm_chip *chip)  in tpm_chip_register()  argument
224 	rc = tpm1_chip_register(chip);  in tpm_chip_register()
228 	rc = tpm_dev_add_device(chip);  in tpm_chip_register()
234 	list_add_rcu(&chip->list, &tpm_chip_list);  in tpm_chip_register()
237 	chip->flags |= TPM_CHIP_FLAG_REGISTERED;  in tpm_chip_register()
241 	tpm1_chip_unregister(chip);  in tpm_chip_register()
256 void tpm_chip_unregister(struct tpm_chip *chip)  in tpm_chip_unregister()  argument
258 	if (!(chip->flags & TPM_CHIP_FLAG_REGISTERED))  in tpm_chip_unregister()
262 	list_del_rcu(&chip->list);  in tpm_chip_unregister()
266 	tpm1_chip_unregister(chip);  in tpm_chip_unregister()
267 	tpm_dev_del_device(chip);  in tpm_chip_unregister()