Update 2.6.36 to 2.6.36.4wip-dissipation2-jerickso

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index a1a7a9795536..480936a870ce 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -132,6 +132,13 @@ static u32 xhci_port_state_to_neutral(u32 state)
 static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex,
                 u32 __iomem *addr, u32 port_status)
 {
+        /* Don't allow the USB core to disable SuperSpeed ports. */
+        if (xhci->port_array[wIndex] == 0x03) {
+                xhci_dbg(xhci, "Ignoring request to disable "
+                                "SuperSpeed port.\n");
+                return;
+        }
+
         /* Write 1 to disable the port */
         xhci_writel(xhci, port_status | PORT_PE, addr);
         port_status = xhci_readl(xhci, addr);