[PATCH 4/4] xhci: don't dereference a xhci member after removing xhci

[Mathias Nyman <mathias.nyman@linux.intel.com>]

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: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
 drivers/usb/host/xhci-pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 4fd041b..d7b0f97 100644
--- 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
-- 
1.9.1