tree fb2aeacdb9fc1e94b5aa13beb6a4818c043b43d3
parent 9a8e62bc68832dc55a5e6868f812b65567fe66b5
author Jiri Slaby <jslaby@suse.cz> 1352969394 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1353028858 -0800

TTY: introduce tty_port_destroy

After commit "TTY: move tty buffers to tty_port", the tty buffers are
not freed in some drivers. This is because tty_port_destructor is not
called whenever a tty_port is freed. This was an assumption I counted
with but was unfortunately untrue.

Those using refcounting are safe now, but for those which do not we
introduce a function to be called right before the tty_port is freed
by the drivers.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>