diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8f2a56ece44..58183d2a808 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1314,8 +1314,10 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, if (ret <= 0) return ret; xhci = hcd_to_xhci(hcd); - xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); + if (xhci->xhc_state & XHCI_STATE_DYING) + return -ENODEV; + xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); drop_flag = xhci_get_endpoint_flag(&ep->desc); if (drop_flag == SLOT_FLAG || drop_flag == EP0_FLAG) { xhci_dbg(xhci, "xHCI %s - can't drop slot or ep 0 %#x\n", @@ -1401,6 +1403,8 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev, return ret; } xhci = hcd_to_xhci(hcd); + if (xhci->xhc_state & XHCI_STATE_DYING) + return -ENODEV; added_ctxs = xhci_get_endpoint_flag(&ep->desc); last_ctx = xhci_last_valid_endpoint(added_ctxs); @@ -1676,6 +1680,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) if (ret <= 0) return ret; xhci = hcd_to_xhci(hcd); + if (xhci->xhc_state & XHCI_STATE_DYING) + return -ENODEV; xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); virt_dev = xhci->devs[udev->slot_id]; |