1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index c222a561c5ac..0f74945af624 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2249,12 +2249,12 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
         n_tty_set_room(tty);
         up_read(&tty->termios_rwsem);
 
-        mutex_unlock(&ldata->atomic_read_lock);
         remove_wait_queue(&tty->read_wait, &wait);
-
         if (!waitqueue_active(&tty->read_wait))
                 ldata->minimum_to_wake = minimum;
 
+        mutex_unlock(&ldata->atomic_read_lock);
+
         __set_current_state(TASK_RUNNING);
         if (b - buf)
                 retval = b - buf;