xhci: don't dereference a xhci member after removing xhci

Remove the hcd after checking for the xhci last quirks, not before.

This caused a hang on a Alpine Ridge xhci based maching which remove
the whole xhci controller when unplugging the last usb device

CC: <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 4fd041bec332c154604d6e1c262a70f791604fae..d7b0f97abbad608200cbfb5b59d0faacfa1b8b43 100644 (file)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -314,11 +314,12 @@ static void xhci_pci_remove(struct pci_dev *dev)
                usb_remove_hcd(xhci->shared_hcd);
                usb_put_hcd(xhci->shared_hcd);
        }
-       usb_hcd_pci_remove(dev);
 
        /* Workaround for spurious wakeups at shutdown with HSW */
        if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
                pci_set_power_state(dev, PCI_D3hot);
+
+       usb_hcd_pci_remove(dev);
 }
 
 #ifdef CONFIG_PM