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pty: Don't drop pty master tty lock to hangup slave

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With the revised tty lock order and lockdep annotation, claiming
the pty slave lock is now safe while still holding the pty master lock.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2014-11-05 12:13:04 -05:00 committed by Greg Kroah-Hartman
parent 35af935ee4
commit 1bb954153a
1 changed files with 0 additions and 2 deletions
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2
drivers/tty/pty.c
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@ -66,9 +66,7 @@ static void pty_close(struct tty_struct *tty, struct file *filp)
mutex_unlock(&devpts_mutex);
}
#endif
tty_unlock(tty);
tty_vhangup(tty->link);
tty_lock(tty);
}
}