diff options
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index b6cfc028f8f7..1e84a842e2a9 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -88,6 +88,32 @@ static const struct xhci_driver_overrides xhci_pci_overrides __initconst = { .update_hub_device = xhci_pci_update_hub_device, }; +/* Free any IRQs and disable MSI-X */ +static void xhci_cleanup_msix(struct xhci_hcd *xhci) +{ + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + + if (xhci->quirks & XHCI_PLAT) + return; + + /* return if using legacy interrupt */ + if (hcd->irq > 0) + return; + + if (hcd->msix_enabled) { + int i; + + for (i = 0; i < xhci->msix_count; i++) + free_irq(pci_irq_vector(pdev, i), xhci_to_hcd(xhci)); + } else { + free_irq(pci_irq_vector(pdev, 0), xhci_to_hcd(xhci)); + } + + pci_free_irq_vectors(pdev); + hcd->msix_enabled = 0; +} + /* * Set up MSI */ |