TTY: ldisc, allow waiting for ldisc arbitrarily long
authorJiri Slaby <jslaby@suse.cz>
Wed, 16 Nov 2011 15:27:07 +0000 (16:27 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 26 Nov 2011 17:08:36 +0000 (09:08 -0800)
commitd21ada2ca367042fc5a1a11a2c2703e04c93211d
treec5cfa9901cff8b37fcc7ff2cc6f2f278f3b8014a
parent5a25cbde3ff3fafa1f48a00a37ed3fda278b5641
TTY: ldisc, allow waiting for ldisc arbitrarily long

commit df92d0561de364de53c42abc5d43e04ab6f326a5 upstream.

To fix a nasty bug in ldisc hup vs. reinit we need to wait infinitely
long for ldisc to be gone. So here we add a parameter to
tty_ldisc_wait_idle to allow that.

This is only a preparation for the real fix which is done in the
following patches.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Dmitriy Matrosov <sgf.dma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/tty_ldisc.c