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| author | Peter Hurley | 2013-06-15 15:14:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2013-07-24 01:43:01 +0200 |
| commit | 6f9b028a8fb9ba4cef0bd04ad4ce149c3f1e838f (patch) | |
| tree | a4db4690a7a52b14444ee62919f0c5c646a49958 /drivers/tty/n_tty.c | |
| parent | n_tty: Make N_TTY ldisc receive path lockless (diff) | |
| download | kernel-qcow2-linux-6f9b028a8fb9ba4cef0bd04ad4ce149c3f1e838f.tar.gz kernel-qcow2-linux-6f9b028a8fb9ba4cef0bd04ad4ce149c3f1e838f.tar.xz kernel-qcow2-linux-6f9b028a8fb9ba4cef0bd04ad4ce149c3f1e838f.zip | |
n_tty: Reset lnext if canonical mode changes
lnext escapes the next input character as a literal, and must
be reset when canonical mode changes (to avoid misinterpreting
a special character as a literal if canonical mode is changed
back again).
lnext is specifically not reset on a buffer flush so as to avoid
misinterpreting the next input character as a special character.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index c7f71cb8ee1f..e63beab3d1c3 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1574,6 +1574,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old) bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); ldata->canon_head = ldata->read_tail; ldata->erasing = 0; + ldata->lnext = 0; } if (canon_change && !L_ICANON(tty) && read_cnt(ldata)) |