diff options
| author | Johan Hovold <johan@kernel.org> | 2017-12-18 14:00:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-18 14:25:14 +0300 |
| commit | afe3eb60fa82a5d812378530b50755f58acc029c (patch) | |
| tree | 8ebb0b16dc033989127f65715ff85c506ba02302 | |
| parent | 19ac50f655373c45f3cb548f510510282186a3dd (diff) | |
| download | linux-afe3eb60fa82a5d812378530b50755f58acc029c.tar.xz | |
serdev: ttyport: do not used keyed wakeup in write_wakeup
Serdev does not use the file abstraction and specifically there will
never be anyone polling a file descriptor for POLLOUT events.
Just use plain wake_up_interruptible() in the write_wakeup callback and
document why it's there.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serdev/serdev-ttyport.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c index c2629ab1bbcf..a5abb05be67d 100644 --- a/drivers/tty/serdev/serdev-ttyport.c +++ b/drivers/tty/serdev/serdev-ttyport.c @@ -59,7 +59,8 @@ static void ttyport_write_wakeup(struct tty_port *port) test_bit(SERPORT_ACTIVE, &serport->flags)) serdev_controller_write_wakeup(ctrl); - wake_up_interruptible_poll(&tty->write_wait, POLLOUT); + /* Wake up any tty_wait_until_sent() */ + wake_up_interruptible(&tty->write_wait); tty_kref_put(tty); } |