1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index e1b46bc7e43c..0e6866fe0f96 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1161,8 +1161,8 @@ void disassociate_ctty(int on_exit)
         tty = get_current_tty();
         if (tty) {
                 tty_pgrp = get_pid(tty->pgrp);
-                mutex_unlock(&tty_mutex);
                 lock_kernel();
+                mutex_unlock(&tty_mutex);
                 /* XXX: here we race, there is nothing protecting tty */
                 if (on_exit && tty->driver->type != TTY_DRIVER_TYPE_PTY)
                         tty_vhangup(tty);