TTY: get rid of BTM around devpts_*

devpts operations are protected by inode mutexes and dentry
refcounting. There is no need to hold BTM.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 44736f9e61d7..ea7ebe22a16c 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1789,11 +1789,11 @@ int tty_release(struct inode *inode, struct file *filp)
          * the slots and preserving the termios structure.
          */
         release_tty(tty, idx);
+        tty_unlock();
 
         /* Make this pty number available for reallocation */
         if (devpts)
                 devpts_kill_index(inode, idx);
-        tty_unlock();
         return 0;
 }