diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/hub.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 37c67d7e8b8..e1731ff8af4 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -525,15 +525,16 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) /* caller has locked the hub device */ -static void hub_pre_reset(struct usb_hub *hub, int disable_ports) +static void hub_pre_reset(struct usb_interface *intf) { + struct usb_hub *hub = usb_get_intfdata(intf); struct usb_device *hdev = hub->hdev; int port1; for (port1 = 1; port1 <= hdev->maxchild; ++port1) { if (hdev->children[port1 - 1]) { usb_disconnect(&hdev->children[port1 - 1]); - if (disable_ports) + if (hub->error == 0) hub_port_disable(hub, port1, 0); } } @@ -541,8 +542,10 @@ static void hub_pre_reset(struct usb_hub *hub, int disable_ports) } /* caller has locked the hub device */ -static void hub_post_reset(struct usb_hub *hub) +static void hub_post_reset(struct usb_interface *intf) { + struct usb_hub *hub = usb_get_intfdata(intf); + hub_activate(hub); hub_power_on(hub); } @@ -802,15 +805,16 @@ static void hub_disconnect(struct usb_interface *intf) struct usb_hub *hub = usb_get_intfdata (intf); struct usb_device *hdev; + /* Disconnect all children and quiesce the hub */ + hub->error = 0; + hub_pre_reset(intf); + usb_set_intfdata (intf, NULL); hdev = hub->hdev; if (hdev->speed == USB_SPEED_HIGH) highspeed_hubs--; - /* Disconnect all children and quiesce the hub */ - hub_pre_reset(hub, 1); - usb_free_urb(hub->urb); hub->urb = NULL; @@ -2747,7 +2751,8 @@ static void hub_events(void) /* If the hub has died, clean up after it */ if (hdev->state == USB_STATE_NOTATTACHED) { - hub_pre_reset(hub, 0); + hub->error = -ENODEV; + hub_pre_reset(intf); goto loop; } @@ -2759,7 +2764,7 @@ static void hub_events(void) dev_dbg (hub_dev, "resetting for error %d\n", hub->error); - ret = usb_reset_device(hdev); + ret = usb_reset_composite_device(hdev, intf); if (ret) { dev_dbg (hub_dev, "error resetting hub: %d\n", ret); @@ -2928,6 +2933,8 @@ static struct usb_driver hub_driver = { .disconnect = hub_disconnect, .suspend = hub_suspend, .resume = hub_resume, + .pre_reset = hub_pre_reset, + .post_reset = hub_post_reset, .ioctl = hub_ioctl, .id_table = hub_id_table, }; @@ -3033,7 +3040,6 @@ int usb_reset_device(struct usb_device *udev) struct usb_device *parent_hdev = udev->parent; struct usb_hub *parent_hub; struct usb_device_descriptor descriptor = udev->descriptor; - struct usb_hub *hub = NULL; int i, ret = 0; int port1 = udev->portnum; @@ -3051,14 +3057,6 @@ int usb_reset_device(struct usb_device *udev) } parent_hub = hdev_to_hub(parent_hdev); - /* If we're resetting an active hub, take some special actions */ - if (udev->actconfig && udev->actconfig->desc.bNumInterfaces > 0 && - udev->actconfig->interface[0]->dev.driver == - &hub_driver.driver && - (hub = hdev_to_hub(udev)) != NULL) { - hub_pre_reset(hub, 0); - } - set_bit(port1, parent_hub->busy_bits); for (i = 0; i < SET_CONFIG_TRIES; ++i) { @@ -3117,8 +3115,6 @@ int usb_reset_device(struct usb_device *udev) } done: - if (hub) - hub_post_reset(hub); return 0; re_enumerate: |