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USB: serial: use tty_port_register_device()

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We already have the tty port when probing a usb-serial port so use
tty_port_register_device() directly instead of tty_port_install() later
to set up the port link.

This is a step towards enabling serdev for usb-serial (but we need to
determine how to handle hotplugging first).

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2018-05-16 11:42:07 +02:00
parent 4d304a6fe9
commit 79ef51894a
2 changed files with 3 additions and 2 deletions
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3
drivers/usb/serial/bus.c
View file

@ -60,7 +60,8 @@ static int usb_serial_device_probe(struct device *dev)
}
minor = port->minor;
tty_dev = tty_register_device(usb_serial_tty_driver, minor, dev);
tty_dev = tty_port_register_device(&port->port, usb_serial_tty_driver,
minor, dev);
if (IS_ERR(tty_dev)) {
retval = PTR_ERR(tty_dev);
goto err_port_remove;

2
drivers/usb/serial/usb-serial.c
View file

@ -192,7 +192,7 @@ static int serial_install(struct tty_driver *driver, struct tty_struct *tty)
if (retval)
goto error_get_interface;
retval = tty_port_install(&port->port, driver, tty);
retval = tty_standard_install(driver, tty);
if (retval)
goto error_init_termios;