1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 6da962c9b21c..d71f0fc34b46 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1875,6 +1875,7 @@ got_driver:
                  */
                 if (filp->f_op == &hung_up_tty_fops)
                         filp->f_op = &tty_fops;
+                unlock_kernel();
                 goto retry_open;
         }
         unlock_kernel();