diff options
| -rw-r--r-- | drivers/usb/serial/usb_wwan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index fe5e48eb9693..817e6ff8de8b 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -424,6 +424,7 @@ int usb_wwan_open(struct tty_struct *tty, struct usb_serial_port *port) spin_lock_irq(&intfdata->susp_lock); portdata->opened = 1; spin_unlock_irq(&intfdata->susp_lock); + /* this balances a get in the generic USB serial code */ usb_autopm_put_interface(serial->interface); return 0; @@ -450,7 +451,8 @@ void usb_wwan_close(struct usb_serial_port *port) usb_kill_urb(portdata->in_urbs[i]); for (i = 0; i < N_OUT_URB; i++) usb_kill_urb(portdata->out_urbs[i]); - usb_autopm_get_interface(serial->interface); + /* balancing - important as an error cannot be handled*/ + usb_autopm_get_interface_no_resume(serial->interface); serial->interface->needs_remote_wakeup = 0; } } |