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>
Thu, 17 Nov 2011 19:36:11 +0000 (11:36 -0800)
commitdf92d0561de364de53c42abc5d43e04ab6f326a5
tree619d22a1115944133a83070ac6b7bddca3047829
parent6edf0c9b1c26d047370cf2f35ff6bb3082243ec3
TTY: ldisc, allow waiting for ldisc arbitrarily long

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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/tty_ldisc.c