usb: typec: tcpci_maxim: remove redundant assignment

PTR_ERR(chip->tcpci) has been used as a return value,
it is not necessary to assign it to ret, so remove it.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Link: https://lore.kernel.org/r/20210124143853.1630-1-angkery@163.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/tcpm/tcpci_maxim.c

@@ -458,7 +458,6 @@ static int max_tcpci_probe(struct i2c_client *client, const struct i2c_device_id
 	chip->tcpci = tcpci_register_port(chip->dev, &chip->data);
 	if (IS_ERR(chip->tcpci)) {
 		dev_err(&client->dev, "TCPCI port registration failed");
-		ret = PTR_ERR(chip->tcpci);
 		return PTR_ERR(chip->tcpci);
 	}
 	chip->port = tcpci_get_tcpm_port(chip->tcpci);