diff options
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 755766e4b75..27a18743275 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -292,7 +292,6 @@ static void acm_ctrl_irq(struct urb *urb) { struct acm *acm = urb->context; struct usb_cdc_notification *dr = urb->transfer_buffer; - struct tty_struct *tty; unsigned char *data; int newctrl; int retval; @@ -327,17 +326,12 @@ static void acm_ctrl_irq(struct urb *urb) break; case USB_CDC_NOTIFY_SERIAL_STATE: - tty = tty_port_tty_get(&acm->port); newctrl = get_unaligned_le16(data); - if (tty) { - if (!acm->clocal && - (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) { - dev_dbg(&acm->control->dev, - "%s - calling hangup\n", __func__); - tty_hangup(tty); - } - tty_kref_put(tty); + if (!acm->clocal && (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) { + dev_dbg(&acm->control->dev, "%s - calling hangup\n", + __func__); + tty_port_tty_hangup(&acm->port, false); } acm->ctrlin = newctrl; @@ -1498,15 +1492,9 @@ err_out: static int acm_reset_resume(struct usb_interface *intf) { struct acm *acm = usb_get_intfdata(intf); - struct tty_struct *tty; - if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) { - tty = tty_port_tty_get(&acm->port); - if (tty) { - tty_hangup(tty); - tty_kref_put(tty); - } - } + if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) + tty_port_tty_hangup(&acm->port, false); return acm_resume(intf); } |