diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a024230f00e2df4ce9f08bb817eb3eb106b31a14..9c7b4394e0bb019d565d3c5e9a7ef969d69e8e79 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -624,6 +624,7 @@ static int xhci_enter_test_mode(struct xhci_hcd *xhci, continue; retval = xhci_disable_slot(xhci, i); + xhci_free_virt_device(xhci, i); if (retval) xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n", i, retval); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index dadc6f43ad69857bc2caf3c3f8a4142adac3303f..6658a352e82ffef2f8aff3330c6b9e3842285721 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1198,7 +1198,6 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id) if (xhci->quirks & XHCI_EP_LIMIT_QUIRK) /* Delete default control endpoint resources */ xhci_free_device_endpoint_resources(xhci, virt_dev, true); - xhci_free_virt_device(xhci, slot_id); } static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index fe042cf13bf8ef2cf6af1493ccfefebb7bf52bd0..1cb66cbe648799898e869174488bcb8e778a19cc 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3774,6 +3774,7 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_virt_device *virt_dev; struct xhci_slot_ctx *slot_ctx; + unsigned long flags; int i, ret; #ifndef CONFIG_USB_DEFAULT_PERSIST @@ -3803,9 +3804,12 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) del_timer_sync(&virt_dev->eps[i].stop_cmd_timer); } virt_dev->udev = NULL; - ret = xhci_disable_slot(xhci, udev->slot_id); - if (ret) - xhci_free_virt_device(xhci, udev->slot_id); + xhci_disable_slot(xhci, udev->slot_id); + + spin_lock_irqsave(&xhci->lock, flags); + xhci_free_virt_device(xhci, udev->slot_id); + spin_unlock_irqrestore(&xhci->lock, flags); + } int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) @@ -3815,7 +3819,7 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) u32 state; int ret = 0; - command = xhci_alloc_command(xhci, false, GFP_KERNEL); + command = xhci_alloc_command(xhci, true, GFP_KERNEL); if (!command) return -ENOMEM; @@ -3840,6 +3844,15 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) } xhci_ring_cmd_db(xhci); spin_unlock_irqrestore(&xhci->lock, flags); + + wait_for_completion(command->completion); + + if (command->status != COMP_SUCCESS) + xhci_warn(xhci, "Unsuccessful disable slot %u command, status %d\n", + slot_id, command->status); + + xhci_free_command(xhci, command); + return ret; } @@ -3950,9 +3963,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev) return 1; disable_slot: - ret = xhci_disable_slot(xhci, udev->slot_id); - if (ret) - xhci_free_virt_device(xhci, udev->slot_id); + xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); return 0; } @@ -4081,6 +4093,7 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, mutex_unlock(&xhci->mutex); ret = xhci_disable_slot(xhci, udev->slot_id); + xhci_free_virt_device(xhci, udev->slot_id); if (!ret) xhci_alloc_dev(hcd, udev); kfree(command->completion);