usb: xhci: Fix panic if disconnect

[pandora-kernel.git] / drivers / usb / host / xhci-hub.c

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 8605813..13bb316 100644 (file)
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -278,6 +278,9 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 
        ret = 0;
        virt_dev = xhci->devs[slot_id];
 
        ret = 0;
        virt_dev = xhci->devs[slot_id];

+       if (!virt_dev)
+               return -ENODEV;
+

        cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO);
        if (!cmd) {
                xhci_dbg(xhci, "Couldn't allocate command structure.\n");
        cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO);
        if (!cmd) {
                xhci_dbg(xhci, "Couldn't allocate command structure.\n");