cdc-wdm: pass return value of recover_from_urb_loss

[ Upstream commit 0742a338 ]

'rv' is the correct return value, pass it upstream instead of 0

Fixes: 17d80d56 ("USB: autosuspend for cdc-wdm")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/usb/class/cdc-wdm.c

@@ -1107,7 +1107,7 @@ static int wdm_post_reset(struct usb_interface *intf)
 	rv = recover_from_urb_loss(desc);
 	mutex_unlock(&desc->wlock);
 	mutex_unlock(&desc->rlock);
-	return 0;
+	return rv;
 }
 
 static struct usb_driver wdm_driver = {