1 files changed, 12 insertions, 12 deletions

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 427e0d5d8f13..5c0e59e8fe46 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1344,7 +1344,7 @@ handle_newline:
 			put_tty_queue(c, ldata);
 			smp_store_release(&ldata->canon_head, ldata->read_head);
 			kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-			wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+			wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
 			return 0;
 		}
 	}
@@ -1625,7 +1625,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
 
 	if (read_cnt(ldata)) {
 		kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-		wake_up_interruptible_poll(&tty->read_wait, POLLIN);
+		wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
 	}
 }
 
@@ -1762,7 +1762,7 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 {
 	struct n_tty_data *ldata = tty->disc_data;
 
-	if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) {
+	if (!old || (old->c_lflag ^ tty->termios.c_lflag) & (ICANON | EXTPROC)) {
 		bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
 		ldata->line_start = ldata->read_tail;
 		if (!L_ICANON(tty) || !read_cnt(ldata)) {
@@ -2368,30 +2368,30 @@ break_out:
  *	Called without the kernel lock held - fine
  */
 
-static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file,
+static __poll_t n_tty_poll(struct tty_struct *tty, struct file *file,
 							poll_table *wait)
 {
-	unsigned int mask = 0;
+	__poll_t mask = 0;
 
 	poll_wait(file, &tty->read_wait, wait);
 	poll_wait(file, &tty->write_wait, wait);
 	if (input_available_p(tty, 1))
-		mask |= POLLIN | POLLRDNORM;
+		mask |= EPOLLIN | EPOLLRDNORM;
 	else {
 		tty_buffer_flush_work(tty->port);
 		if (input_available_p(tty, 1))
-			mask |= POLLIN | POLLRDNORM;
+			mask |= EPOLLIN | EPOLLRDNORM;
 	}
 	if (tty->packet && tty->link->ctrl_status)
-		mask |= POLLPRI | POLLIN | POLLRDNORM;
+		mask |= EPOLLPRI | EPOLLIN | EPOLLRDNORM;
 	if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
-		mask |= POLLHUP;
+		mask |= EPOLLHUP;
 	if (tty_hung_up_p(file))
-		mask |= POLLHUP;
+		mask |= EPOLLHUP;
 	if (tty->ops->write && !tty_is_writelocked(tty) &&
 			tty_chars_in_buffer(tty) < WAKEUP_CHARS &&
 			tty_write_room(tty) > 0)
-		mask |= POLLOUT | POLLWRNORM;
+		mask |= EPOLLOUT | EPOLLWRNORM;
 	return mask;
 }
 
@@ -2425,7 +2425,7 @@ static int n_tty_ioctl(struct tty_struct *tty, struct file *file,
 		return put_user(tty_chars_in_buffer(tty), (int __user *) arg);
 	case TIOCINQ:
 		down_write(&tty->termios_rwsem);
-		if (L_ICANON(tty))
+		if (L_ICANON(tty) && !L_EXTPROC(tty))
 			retval = inq_canon(ldata);
 		else
 			retval = read_cnt(ldata);