[PATCH tty-next 1/3] n_tty: Remove superfluous reader wakeup

[Peter Hurley]

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

Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
 drivers/tty/n_tty.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 01bf5eb..42d7ae7 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1763,9 +1763,6 @@ 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) ||
-- 
1.8.1.2

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