| commit | ee0c1a65cf95230d5eb3d9de94fd2ead9a428c67 | [log] [tgz] |
|---|---|---|
| author | Peter Hurley <peter@hurleysoftware.com> | Wed Nov 11 08:03:54 2015 -0500 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Fri Nov 20 16:19:54 2015 -0800 |
| tree | 2e2a14ae56458b5af323266ede1c4908be225f83 | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec [diff] |
tty: Fix tty_send_xchar() lock order inversion
The correct lock order is atomic_write_lock => termios_rwsem, as
established by tty_write() => n_tty_write().
Fixes: c274f6ef1c666 ("tty: Hold termios_rwsem for tcflow(TCIxxx)")
Reported-and-Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>