diff options
Diffstat (limited to 'drivers/usb/serial/usb_wwan.c')
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 01c94aada56c..571965aa1cc0 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -38,7 +38,6 @@ void usb_wwan_dtr_rts(struct usb_serial_port *port, int on) { - struct usb_serial *serial = port->serial; struct usb_wwan_port_private *portdata; struct usb_wwan_intf_private *intfdata; @@ -48,12 +47,11 @@ void usb_wwan_dtr_rts(struct usb_serial_port *port, int on) return; portdata = usb_get_serial_port_data(port); - mutex_lock(&serial->disc_mutex); + /* FIXME: locking */ portdata->rts_state = on; portdata->dtr_state = on; - if (serial->dev) - intfdata->send_setup(port); - mutex_unlock(&serial->disc_mutex); + + intfdata->send_setup(port); } EXPORT_SYMBOL(usb_wwan_dtr_rts); @@ -275,7 +273,6 @@ static void usb_wwan_indat_callback(struct urb *urb) int err; int endpoint; struct usb_serial_port *port; - struct tty_struct *tty; struct device *dev; unsigned char *data = urb->transfer_buffer; int status = urb->status; @@ -288,16 +285,12 @@ static void usb_wwan_indat_callback(struct urb *urb) dev_dbg(dev, "%s: nonzero status: %d on endpoint %02x.\n", __func__, status, endpoint); } else { - tty = tty_port_tty_get(&port->port); - if (tty) { - if (urb->actual_length) { - tty_insert_flip_string(tty, data, - urb->actual_length); - tty_flip_buffer_push(tty); - } else - dev_dbg(dev, "%s: empty read urb received\n", __func__); - tty_kref_put(tty); - } + if (urb->actual_length) { + tty_insert_flip_string(&port->port, data, + urb->actual_length); + tty_flip_buffer_push(&port->port); + } else + dev_dbg(dev, "%s: empty read urb received\n", __func__); /* Resubmit urb so we continue receiving */ err = usb_submit_urb(urb, GFP_ATOMIC); |