tty: Handle NULL tty->ldisc

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In preparation of destroying line discipline on hangup, fix
ldisc core operations to properly handle when the tty's ldisc is
NULL.

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

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Peter Hurley 2016-01-10 22:41:02 -08:00 • committed by Greg Kroah-Hartman

parent e55afd11a4

commit a570a49abd

1 changed files with 12 additions and 4 deletions

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drivers/tty/tty_ldisc.c

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