1 files changed, 0 insertions, 4 deletions

diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 9c5aebfe7053..1445dd39aa62 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -1147,16 +1147,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
                         spin_unlock_irq(&tty->flow_lock);
                         break;
                 case TCIOFF:
-                        down_read(&tty->termios_rwsem);
                         if (STOP_CHAR(tty) != __DISABLED_CHAR)
                                 retval = tty_send_xchar(tty, STOP_CHAR(tty));
-                        up_read(&tty->termios_rwsem);
                         break;
                 case TCION:
-                        down_read(&tty->termios_rwsem);
                         if (START_CHAR(tty) != __DISABLED_CHAR)
                                 retval = tty_send_xchar(tty, START_CHAR(tty));
-                        up_read(&tty->termios_rwsem);
                         break;
                 default:
                         return -EINVAL;