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n_tty: Remove superfluous reader wakeup 

n_tty's .set_termios method unconditionally performs reader wakeup;
remove extra reader wakeup for canonical mode changes.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2013-09-17 12:53:34 -04:00 committed by Greg Kroah-Hartman
parent 4a10c2ac2f
commit 1cb40d0872
1 changed files with 0 additions and 3 deletions
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3
drivers/tty/n_tty.c
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@ -1764,9 +1764,6 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
ldata->lnext = 0;
}
if (canon_change && !L_ICANON(tty) && read_cnt(ldata))
wake_up_interruptible(&tty->read_wait);
ldata->icanon = (L_ICANON(tty) != 0);
if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) ||