Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...

[linux-2.6-omap-h63xx.git] / drivers / usb / core / hub.c

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 94789be54ca3a8c66bfd0e4b5e21c9b9112b5ab9..4cfe32a16c37fb689e8bab4796b6918a36728382 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -713,18 +713,11 @@ static void hub_restart(struct usb_hub *hub, int type)
                }
 
                /* Was the power session lost while we were suspended? */
-               switch (type) {
-               case HUB_RESET_RESUME:
-                       portstatus = 0;
-                       portchange = USB_PORT_STAT_C_CONNECTION;
-                       break;
+               status = hub_port_status(hub, port1, &portstatus, &portchange);
 
-               case HUB_RESET:
-               case HUB_RESUME:
-                       status = hub_port_status(hub, port1,
-                                       &portstatus, &portchange);
-                       break;
-               }
+               /* If the device is gone, khubd will handle it later */
+               if (status == 0 && !(portstatus & USB_PORT_STAT_CONNECTION))
+                       continue;
 
                /* For "USB_PERSIST"-enabled children we must
                 * mark the child device for reset-resume and
@@ -2080,6 +2073,8 @@ int usb_port_resume(struct usb_device *udev)
        }
 
        clear_bit(port1, hub->busy_bits);
+       if (!hub->hdev->parent && !hub->busy_bits[0])
+               usb_enable_root_hub_irq(hub->hdev->bus);
 
        if (status == 0)
                status = finish_port_resume(udev);
@@ -3009,6 +3004,11 @@ static void hub_events(void)
 
                hub->activating = 0;
 
+               /* If this is a root hub, tell the HCD it's okay to
+                * re-enable port-change interrupts now. */
+               if (!hdev->parent && !hub->busy_bits[0])
+                       usb_enable_root_hub_irq(hdev->bus);
+
 loop_autopm:
                /* Allow autosuspend if we're not going to run again */
                if (list_empty(&hub->event_list))
@@ -3234,6 +3234,8 @@ int usb_reset_device(struct usb_device *udev)
                        break;
        }
        clear_bit(port1, parent_hub->busy_bits);
+       if (!parent_hdev->parent && !parent_hub->busy_bits[0])
+               usb_enable_root_hub_irq(parent_hdev->bus);
 
        if (ret < 0)
                goto re_enumerate;