xhci: Set quirky xHC PCI hosts to D3 _after_ stopping and freeing them.

PCI xHC host should be stopped and xhci driver memory freed before putting
host to PCI D3 state during PCI remove callback.

Hosts with XHCI_SPURIOUS_WAKEUP quirk did this the wrong way around
and set the host to D3 before calling usb_hcd_pci_remove(dev), which will
access the host to stop it, and then free xhci.

Fixes: f1f6d9a ("xhci: don't dereference a xhci member after removing xhci")
Cc: [email protected]
Signed-off-by: Mathias Nyman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: matnyman

drivers/usb/host/xhci-pci.c

@@ -657,8 +657,10 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 void xhci_pci_remove(struct pci_dev *dev)
 {
 	struct xhci_hcd *xhci;
+	bool set_power_d3;
 
 	xhci = hcd_to_xhci(pci_get_drvdata(dev));
+	set_power_d3 = xhci->quirks & XHCI_SPURIOUS_WAKEUP;
 
 	xhci->xhc_state |= XHCI_STATE_REMOVING;
 
@@ -671,11 +673,11 @@ void xhci_pci_remove(struct pci_dev *dev)
 		xhci->shared_hcd = NULL;
 	}
 
+	usb_hcd_pci_remove(dev);
+
 	/* Workaround for spurious wakeups at shutdown with HSW */
-	if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+	if (set_power_d3)
 		pci_set_power_state(dev, PCI_D3hot);
-
-	usb_hcd_pci_remove(dev);
 }
 EXPORT_SYMBOL_NS_GPL(xhci_pci_remove, xhci);