tty: Introduce a tty_port generic block_til_ready

Start sucking more commonality out of the drivers into a single piece of
core code.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index ac9f21e18c3f..0ded4ed3da3c 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -3401,6 +3401,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
         set_current_state(TASK_RUNNING);
         remove_wait_queue(&port->open_wait, &wait);
         
+        /* FIXME: Racy on hangup during close wait */
         if (extra_count)
                 port->count++;
         port->blocked_open--;