tree 2ca7959df8ebba974bc9ba9011ab25e0550ed63d
parent 7342c59a44ad9e5f30baaa2de84830f40b9f06c0
author Jiri Slaby <jslaby@suse.cz> 1352969389 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1353028735 -0800

TTY: pty, fix tty buffers leak

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. So fix the drivers to fulfil this
assumption.

PTY is one of those, here we just need to use tty_port_put instead of
kfree. (Assuming tty_port_destructor does not need port->ops to be set
which we change here too.)

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