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path: root/drivers/usb/serial/sierra.c
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Diffstat (limited to 'drivers/usb/serial/sierra.c')
-rw-r--r--drivers/usb/serial/sierra.c47
1 files changed, 19 insertions, 28 deletions
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index c13f6e74774..8894665cd61 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -628,7 +628,6 @@ static void sierra_instat_callback(struct urb *urb)
unsigned char signals = *((unsigned char *)
urb->transfer_buffer +
sizeof(struct usb_ctrlrequest));
- struct tty_struct *tty;
dev_dbg(&port->dev, "%s: signal x%x\n", __func__,
signals);
@@ -639,11 +638,8 @@ static void sierra_instat_callback(struct urb *urb)
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
- tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty) &&
- old_dcd_state && !portdata->dcd_state)
- tty_hangup(tty);
- tty_kref_put(tty);
+ if (old_dcd_state && !portdata->dcd_state)
+ tty_port_tty_hangup(&port->port, true);
} else {
dev_dbg(&port->dev, "%s: type %x req %x\n",
__func__, req_pkt->bRequestType,
@@ -778,30 +774,25 @@ static void sierra_close(struct usb_serial_port *port)
portdata->rts_state = 0;
portdata->dtr_state = 0;
- if (serial->dev) {
- mutex_lock(&serial->disc_mutex);
- if (!serial->disconnected) {
- serial->interface->needs_remote_wakeup = 0;
- /* odd error handling due to pm counters */
- if (!usb_autopm_get_interface(serial->interface))
- sierra_send_setup(port);
- else
- usb_autopm_get_interface_no_resume(serial->interface);
-
- }
- mutex_unlock(&serial->disc_mutex);
- spin_lock_irq(&intfdata->susp_lock);
- portdata->opened = 0;
- spin_unlock_irq(&intfdata->susp_lock);
+ mutex_lock(&serial->disc_mutex);
+ if (!serial->disconnected) {
+ serial->interface->needs_remote_wakeup = 0;
+ /* odd error handling due to pm counters */
+ if (!usb_autopm_get_interface(serial->interface))
+ sierra_send_setup(port);
+ else
+ usb_autopm_get_interface_no_resume(serial->interface);
+ }
+ mutex_unlock(&serial->disc_mutex);
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
- /* Stop reading urbs */
- sierra_stop_rx_urbs(port);
- /* .. and release them */
- for (i = 0; i < portdata->num_in_urbs; i++) {
- sierra_release_urb(portdata->in_urbs[i]);
- portdata->in_urbs[i] = NULL;
- }
+ sierra_stop_rx_urbs(port);
+ for (i = 0; i < portdata->num_in_urbs; i++) {
+ sierra_release_urb(portdata->in_urbs[i]);
+ portdata->in_urbs[i] = NULL;
}
}