hvc_console: Add a hangup notifier for backends

I have added a hangup notifier that can be used by hvc console
backends to handle a tty hangup. The default irq hangup notifier
calls the notifier_del_irq() for compatibility.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index bf70450a49cc..5c9750ed0bc2 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -418,8 +418,8 @@ static void hvc_hangup(struct tty_struct *tty)
 
         spin_unlock_irqrestore(&hp->lock, flags);
 
-        if (hp->ops->notifier_del)
-                        hp->ops->notifier_del(hp, hp->data);
+        if (hp->ops->notifier_hangup)
+                        hp->ops->notifier_hangup(hp, hp->data);
 
         while(temp_open_count) {
                 --temp_open_count;