diff options
| -rw-r--r-- | drivers/usb/serial/visor.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 1aa5d20a5d9..8e2d6dd9add 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -513,7 +513,8 @@ static void visor_read_bulk_callback(struct urb *urb) tty_kref_put(tty); } spin_lock(&priv->lock); - priv->bytes_in += available_room; + if (tty) + priv->bytes_in += available_room; } else { spin_lock(&priv->lock); |