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>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index 913025369fe7..45f6136f4e51 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -3689,8 +3689,11 @@ static void device_init(int adapter_num, struct pci_dev *pdev)
                 }
         }
 
-        for (i=0; i < port_count; ++i)
-                tty_register_device(serial_driver, port_array[i]->line, &(port_array[i]->pdev->dev));
+        for (i = 0; i < port_count; ++i) {
+                struct slgt_info *info = port_array[i];
+                tty_port_register_device(&info->port, serial_driver, info->line,
+                                &info->pdev->dev);
+        }
 }
 
 static int __devinit init_one(struct pci_dev *dev,