tree 004e21ee4cc60fc6a9dd9b57991dd968047fc0f8
parent 103fcbe2eeb56d6ee693c573eac81e398fa276bd
author Peter Hurley <peter@hurleysoftware.com> 1379551359 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1380157714 -0700

tty: Prevent tty_port destruction if tty not released

If the tty driver mistakenly drops the last port reference
before the tty has been released, issue a diagnostic and
abort the port destruction.

This will leak memory and may zombify the port, but might
otherwise keep the machine in runnable state.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>