usb: wwan: fix compilation without CONFIG_PM_RUNTIME

The pm usage counter must be accessed with the proper wrappers
to allow compilation under all configurations.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reported-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index a65ddd543869..e4fad5e643d7 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -698,8 +698,7 @@ static void play_delayed(struct usb_serial_port *port)
                         /* we have to throw away the rest */
                         do {
                                 unbusy_queued_urb(urb, portdata);
-                                //extremely dirty
-                                atomic_dec(&port->serial->interface->dev.power.usage_count);
+                                usb_autopm_put_interface_no_suspend(port->serial->interface);
                         } while ((urb = usb_get_from_anchor(&portdata->delayed)));
                         break;
                 }