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authorMathias Nyman <mathias.nyman@linux.intel.com>2016-08-16 10:18:06 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-07 08:32:40 +0200
commitc5a6d60b93315ecf7d2d446045a7295f0825e6fc (patch)
tree01aada8522260e55a5b5308502327339b03fdda3 /drivers/usb/host/xhci-pci.c
parent262d059872a93c1bdaa3371602c921f1ce758f1d (diff)
xhci: don't dereference a xhci member after removing xhci
commit f1f6d9a8b540df22b87a5bf6bc104edaade81f47 upstream. 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 Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
-rw-r--r--drivers/usb/host/xhci-pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index de644e56aa3b..963867c2c1d5 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -311,11 +311,12 @@ 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