From f1f6d9a8b540df22b87a5bf6bc104edaade81f47 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Tue, 16 Aug 2016 10:18:06 +0300 Subject: 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: Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- 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 -- cgit v1.1