diff options
| -rw-r--r-- | drivers/usb/core/hub.c | 46 |
1 files changed, 2 insertions, 44 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index d741b945742..976da1c4919 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -644,48 +644,6 @@ static void hub_stop(struct usb_hub *hub) #ifdef CONFIG_PM -/* Try to identify which devices need USB-PERSIST handling */ -static int persistent_device(struct usb_device *udev) -{ - int i; - int retval; - struct usb_host_config *actconfig; - - /* Explicitly not marked persistent? */ - if (!udev->persist_enabled) - return 0; - - /* No active config? */ - actconfig = udev->actconfig; - if (!actconfig) - return 0; - - /* FIXME! We should check whether it's open here or not! */ - - /* - * Check that all the interface drivers have a - * 'reset_resume' entrypoint - */ - retval = 0; - for (i = 0; i < actconfig->desc.bNumInterfaces; i++) { - struct usb_interface *intf; - struct usb_driver *driver; - - intf = actconfig->interface[i]; - if (!intf->dev.driver) - continue; - driver = to_usb_driver(intf->dev.driver); - if (!driver->reset_resume) - return 0; - /* - * We have at least one driver, and that one - * has a reset_resume method. - */ - retval = 1; - } - return retval; -} - static void hub_restart(struct usb_hub *hub, int type) { struct usb_device *hdev = hub->hdev; @@ -731,8 +689,8 @@ static void hub_restart(struct usb_hub *hub, int type) * turn off the various status changes to prevent * khubd from disconnecting it later. */ - if (status == 0 && !(portstatus & USB_PORT_STAT_ENABLE) && - persistent_device(udev)) { + if (udev->persist_enabled && status == 0 && + !(portstatus & USB_PORT_STAT_ENABLE)) { if (portchange & USB_PORT_STAT_C_ENABLE) clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_ENABLE); |