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authorJiri Slaby <jslaby@suse.cz>2012-08-07 23:47:47 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-14 03:50:19 +0400
commit734cc1783816ae358cef45673a29bf7af974e147 (patch)
tree146fde2a1add56ff7a35915d0fd1db7e01ce6630 /drivers/usb/class
parent7e73eca6a7b2967423902a4543821bb97cbbe698 (diff)
downloadlinux-734cc1783816ae358cef45673a29bf7af974e147.tar.xz
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>
Diffstat (limited to 'drivers/usb/class')
-rw-r--r--drivers/usb/class/cdc-acm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 18f4e62aaa75..455ef1649231 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -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: