diff options
Diffstat (limited to 'drivers/char/tpm/tpm_i2c_atmel.c')
-rw-r--r-- | drivers/char/tpm/tpm_i2c_atmel.c | 39 |
1 files changed, 11 insertions, 28 deletions
diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c index 5f448886417f..643a9402e911 100644 --- a/drivers/char/tpm/tpm_i2c_atmel.c +++ b/drivers/char/tpm/tpm_i2c_atmel.c @@ -153,25 +153,20 @@ static const struct tpm_class_ops i2c_atmel = { static int i2c_atmel_probe(struct i2c_client *client, const struct i2c_device_id *id) { - int rc; struct tpm_chip *chip; struct device *dev = &client->dev; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) return -ENODEV; - chip = tpm_register_hardware(dev, &i2c_atmel); - if (!chip) { - dev_err(dev, "%s() error in tpm_register_hardware\n", __func__); - return -ENODEV; - } + chip = tpmm_chip_alloc(dev, &i2c_atmel); + if (IS_ERR(chip)) + return PTR_ERR(chip); chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data), GFP_KERNEL); - if (!chip->vendor.priv) { - rc = -ENOMEM; - goto out_err; - } + if (!chip->vendor.priv) + return -ENOMEM; /* Default timeouts */ chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); @@ -183,32 +178,20 @@ static int i2c_atmel_probe(struct i2c_client *client, /* There is no known way to probe for this device, and all version * information seems to be read via TPM commands. Thus we rely on the * TPM startup process in the common code to detect the device. */ - if (tpm_get_timeouts(chip)) { - rc = -ENODEV; - goto out_err; - } - - if (tpm_do_selftest(chip)) { - rc = -ENODEV; - goto out_err; - } + if (tpm_get_timeouts(chip)) + return -ENODEV; - return 0; + if (tpm_do_selftest(chip)) + return -ENODEV; -out_err: - tpm_dev_vendor_release(chip); - tpm_remove_hardware(chip->dev); - return rc; + return tpm_chip_register(chip); } static int i2c_atmel_remove(struct i2c_client *client) { struct device *dev = &(client->dev); struct tpm_chip *chip = dev_get_drvdata(dev); - - tpm_dev_vendor_release(chip); - tpm_remove_hardware(dev); - kfree(chip); + tpm_chip_unregister(chip); return 0; } |