diff options
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 47 |
1 files changed, 10 insertions, 37 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 7af53db4d76..a310c7cede9 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1556,26 +1556,6 @@ static int __usb_port_suspend (struct usb_device *udev, int port1) if (port1 < 0) return port1; - if (udev->state == USB_STATE_SUSPENDED - || udev->state == USB_STATE_NOTATTACHED) { - return 0; - } - - /* all interfaces must already be suspended */ - if (udev->actconfig) { - int i; - - for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { - struct usb_interface *intf; - - intf = udev->actconfig->interface[i]; - if (is_active(intf)) { - dev_dbg(&intf->dev, "nyet suspended\n"); - return -EBUSY; - } - } - } - /* we change the device's upstream USB link, * but root hubs have no upstream USB link. */ @@ -1614,8 +1594,6 @@ static int __usb_port_suspend (struct usb_device *udev, int port1) int usb_port_suspend(struct usb_device *udev) { #ifdef CONFIG_USB_SUSPEND - if (udev->state == USB_STATE_NOTATTACHED) - return -ENODEV; return __usb_port_suspend(udev, udev->portnum); #else return 0; @@ -1761,24 +1739,17 @@ hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) */ int usb_port_resume(struct usb_device *udev) { - int status; - - if (udev->state == USB_STATE_NOTATTACHED) - return -ENODEV; + int status = 0; /* we change the device's upstream USB link, * but root hubs have no upstream USB link. */ if (udev->parent) { #ifdef CONFIG_USB_SUSPEND - if (udev->state == USB_STATE_SUSPENDED) { - // NOTE swsusp may bork us, device state being wrong... - // NOTE this fails if parent is also suspended... - status = hub_port_resume(hdev_to_hub(udev->parent), - udev->portnum, udev); - } else + // NOTE this fails if parent is also suspended... + status = hub_port_resume(hdev_to_hub(udev->parent), + udev->portnum, udev); #endif - status = 0; } else status = finish_port_resume(udev); if (status < 0) @@ -1821,12 +1792,14 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) struct usb_device *udev; udev = hdev->children [port1-1]; - if (udev && (udev->dev.power.power_state.event - == PM_EVENT_ON + if (udev && msg.event == PM_EVENT_SUSPEND && #ifdef CONFIG_USB_SUSPEND - || udev->state != USB_STATE_SUSPENDED + udev->state != USB_STATE_SUSPENDED +#else + udev->dev.power.power_state.event + == PM_EVENT_ON #endif - )) { + ) { dev_dbg(&intf->dev, "port %d nyet suspended\n", port1); return -EBUSY; } |