[PATCH 5.15 327/691] xhci: Set quirky xHC PCI hosts to D3 _after_ stopping and freeing them.

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>

commit f81dfa3b57c624c56f2bff171c431bc7f5b558f2 upstream.

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: f1f6d9a8b540 ("xhci: don't dereference a xhci member after removing xhci")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240905143300.1959279-12-mathias.nyman@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/usb/host/xhci-pci.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -535,8 +535,10 @@ put_runtime_pm:
 static 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;
 
@@ -549,11 +551,11 @@ static void xhci_pci_remove(struct pci_d
 		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);
 }
 
 #ifdef CONFIG_PM






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