diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index fe1c39992c51102bbcc4ffcb2aa77e933ed4089a..a6eea30d091109353979a1f7ab30a533cdfb35b8 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1724,7 +1724,6 @@ static inline int input_available_p(struct tty_struct *tty, int amt)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 
-	tty_flush_to_ldisc(tty);
 	if (ldata->icanon && !L_EXTPROC(tty)) {
 		if (ldata->canon_head != ldata->read_tail)
 			return 1;