Messages in this thread Patch in this message | | | From | Peter Hurley <> | Subject | [PATCH] n_tty: Fix EOF push index when termios changes | Date | Tue, 17 Sep 2013 12:34:14 -0400 |
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Commit 40d5e0905a03601d40cd4e46b8690093c2355d03, 'n_tty: Fix EOF push handling' introduced a subtle state change error wrt EOF push handling when the termios is changed from non-canonical to canonical mode.
Reset line_start to the current read_tail index, not 0.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- drivers/tty/n_tty.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index c9a9ddd..01bf5eb 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1758,8 +1758,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old) canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON; if (canon_change) { bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE); - ldata->line_start = 0; - ldata->canon_head = ldata->read_tail; + ldata->line_start = ldata->canon_head = ldata->read_tail; ldata->erasing = 0; ldata->lnext = 0; } -- 1.8.1.2
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