TTY: use tty_port_register_device
Currently we have no way to assign tty->port while performing tty
installation. There are two ways to provide the link tty_struct =>
tty_port. Either by calling tty_port_install from tty->ops->install or
tty_port_register_device called instead of tty_register_device when
the device is being set up after connected.
In this patch we modify most of the drivers to do the latter. When the
drivers use tty_register_device and we have tty_port already, we
switch to tty_port_register_device. So we have the tty_struct =>
tty_port link for free for those.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 7736af7..605a4ba 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2287,9 +2287,11 @@
if (minor < 0)
goto exit;
+ tty_port_init(&serial->port);
+
/* register our minor number */
- serial->parent->dev = tty_register_device(tty_drv, minor,
- &serial->parent->interface->dev);
+ serial->parent->dev = tty_port_register_device(&serial->port, tty_drv,
+ minor, &serial->parent->interface->dev);
dev = serial->parent->dev;
dev_set_drvdata(dev, serial->parent);
i = device_create_file(dev, &dev_attr_hsotype);
@@ -2298,7 +2300,6 @@
serial->minor = minor;
serial->magic = HSO_SERIAL_MAGIC;
spin_lock_init(&serial->serial_lock);
- tty_port_init(&serial->port);
serial->num_rx_urbs = num_urbs;
/* RX, allocate urb and initialize */