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(parent: 103fcbe) | patch
tty: Prevent tty_port destruction if tty not released
authorPeter Hurley <peter@hurleysoftware.com>
Thu, 19 Sep 2013 00:42:39 +0000 (20:42 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 26 Sep 2013 01:08:34 +0000 (18:08 -0700)
commite3bfea23a62dccfd12875a6cc24fa5c77e8a3c07
tree004e21ee4cc60fc6a9dd9b57991dd968047fc0f8tree | snapshot
parent103fcbe2eeb56d6ee693c573eac81e398fa276bdcommit | diff
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>
drivers/tty/tty_port.c diff | blob | history
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