Last minute TTY API change: remove mutex argument from tty_alloc().

I don't want people to override the mutex when allocating a TTY. It has
to be there, to keep drivers like syscons happy. So I'm creating a
tty_alloc_mutex() which can be used in those cases. tty_alloc_mutex()
should eventually be removed.

The advantage of this approach, is that we can just remove a function,
without breaking the regular API in the future.

1 files changed, 8 insertions, 1 deletions

diff --git a/sys/kern/tty.c b/sys/kern/tty.c
index 9b3c571..ba7e6ba 100644
--- a/sys/kern/tty.c
+++ b/sys/kern/tty.c
@@ -885,7 +885,14 @@ ttydevsw_deffree(void *softc)
  */
 
 struct tty *
-tty_alloc(struct ttydevsw *tsw, void *sc, struct mtx *mutex)
+tty_alloc(struct ttydevsw *tsw, void *sc)
+{
+
+	return (tty_alloc_mutex(tsw, sc, NULL));
+}
+
+struct tty *
+tty_alloc_mutex(struct ttydevsw *tsw, void *sc, struct mtx *mutex)
 {
 	struct tty *tp;