TTY: call tty_port_destroy in the rest of drivers
After commit "TTY: move tty buffers to tty_port", the tty buffers are
not freed in some drivers. This is because tty_port_destructor is not
called whenever a tty_port is freed. This was an assumption I counted
with but was unfortunately untrue. So fix the drivers to fulfil this
assumption.
To be sure, the TTY buffers (and later some stuff) are gone along with
the tty_port, we have to call tty_port_destroy at tear-down places.
This is mostly where the structure containing a tty_port is freed.
This patch does exactly that -- put tty_port_destroy at those places.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 605a4ba..cd8ccb2 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2274,6 +2274,7 @@
/* unlink and free TX URB */
usb_free_urb(serial->tx_urb);
kfree(serial->tx_data);
+ tty_port_destroy(&serial->port);
}
static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
@@ -2283,12 +2284,12 @@
int minor;
int i;
+ tty_port_init(&serial->port);
+
minor = get_free_serial_index();
if (minor < 0)
goto exit;
- tty_port_init(&serial->port);
-
/* register our minor number */
serial->parent->dev = tty_port_register_device(&serial->port, tty_drv,
minor, &serial->parent->interface->dev);