diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2024-09-05 17:32:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-05 16:39:22 +0200 |
| commit | f81dfa3b57c624c56f2bff171c431bc7f5b558f2 (patch) | |
| tree | 59733eecc4bfa23b2cd0b4b726383af7571cef1e /drivers | |
| parent | da6a6dcfce61f765d5a77688f4a813deb410762e (diff) | |
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: f1f6d9a8b540 ("xhci: don't dereference a xhci member after removing xhci")
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240905143300.1959279-12-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 526739af2070..de50f5ba60df 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/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); |