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authorPeter Hurley <peter@hurleysoftware.com>2016-01-10 22:40:57 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-01-27 15:01:44 -0800
commitece53405a1f8ddf60b78e1365addcad521b2c93f (patch)
treec5078f6e4067c27b2f68595a2dcbe2575fc655b8 /drivers/tty/tty_ldisc.c
parentfdfb719e93b55a50f90da2059dc450e7c0c48e8f (diff)
downloadlinux-ece53405a1f8ddf60b78e1365addcad521b2c93f.tar.bz2
tty: Reset c_line from driver's init_termios
After the ldisc is released, but before the tty is destroyed, the termios is saved (in tty_free_termios()); this termios is restored if a new tty is created on next open(). However, the line discipline is always reset, which is not obvious in the current method. Instead, reset as part of the restore. Restore the original line discipline, which may not have been N_TTY. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_ldisc.c')
-rw-r--r--drivers/tty/tty_ldisc.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 713cc2d48846..b2e8210639dd 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -743,9 +743,6 @@ static void tty_ldisc_kill(struct tty_struct *tty)
tty_ldisc_put(tty->ldisc);
/* Force an oops if we mess this up */
tty->ldisc = NULL;
-
- /* Ensure the next open requests the N_TTY ldisc */
- tty_set_termios_ldisc(tty, N_TTY);
}
/**