diff options
| author | Jiri Slaby | 2012-10-18 22:26:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2012-10-23 01:58:28 +0200 |
| commit | ecbbfd44a08fa80e0d664814efd4c187721b85f6 (patch) | |
| tree | f1c9aea12eb27323b9e7f4b8329e47dc3c30e63d /drivers/tty/n_tty.c | |
| parent | TTY: add port -> tty link (diff) | |
| download | kernel-qcow2-linux-ecbbfd44a08fa80e0d664814efd4c187721b85f6.tar.gz kernel-qcow2-linux-ecbbfd44a08fa80e0d664814efd4c187721b85f6.tar.xz kernel-qcow2-linux-ecbbfd44a08fa80e0d664814efd4c187721b85f6.zip | |
TTY: move tty buffers to tty_port
So this is it. The big step why we did all the work over the past
kernel releases. Now everything is prepared, so nothing protects us
from doing that big step.
| | \ \ nnnn/^l | |
| | \ / / | |
| '-,.__ => \/ ,-` => | '-,.__
| O __.´´) ( .` | O __.´´)
~~~ ~~ `` ~~~ ~~
The buffers are now in the tty_port structure and we can start
teaching the buffer helpers (insert char/string, flip etc.) to use
tty_port instead of tty_struct all around.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 531e539dbfcf..60b076cc4e20 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -149,8 +149,11 @@ static void n_tty_set_room(struct tty_struct *tty) tty->receive_room = left; /* Did this open up the receive buffer? We may need to flip */ - if (left && !old_left) - schedule_work(&tty->buf.work); + if (left && !old_left) { + WARN_RATELIMIT(tty->port->itty == NULL, + "scheduling with invalid itty"); + schedule_work(&tty->port->buf.work); + } } static void put_tty_queue_nolock(unsigned char c, struct n_tty_data *ldata) |