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TTY: use tty_port_register_device

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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>
This commit is contained in:
Jiri Slaby
2012-08-07 21:47:47 +02:00
committed by Greg Kroah-Hartman
parent 7e73eca6a7
commit 734cc17838
20 changed files with 58 additions and 40 deletions
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3
drivers/usb/class/cdc-acm.c
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@@ -1298,7 +1298,8 @@ skip_countries:
usb_set_intfdata(data_interface, acm);
usb_get_intf(control_interface);
tty_register_device(acm_tty_driver, minor, &control_interface->dev);
tty_port_register_device(&acm->port, acm_tty_driver, minor,
&control_interface->dev);
return 0;
alloc_fail7: