Kernel bump from 4.1.3-rt to 4.1.7-rt.

[kvmfornfv.git] / kernel / drivers / usb / core / hcd.c

diff --git a/kernel/drivers/usb/core/hcd.c b/kernel/drivers/usb/core/hcd.c
index 69398f9..ab14f84 100644 (file)
--- a/kernel/drivers/usb/core/hcd.c
+++ b/kernel/drivers/usb/core/hcd.c
@@ -1022,9 +1022,12 @@ static int register_root_hub(struct usb_hcd *hcd)
                                dev_name(&usb_dev->dev), retval);
                return (retval < 0) ? retval : -EMSGSIZE;
        }
-       if (usb_dev->speed == USB_SPEED_SUPER) {
+
+       if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) {
                retval = usb_get_bos_descriptor(usb_dev);
-               if (retval < 0) {
+               if (!retval) {
+                       usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
+               } else if (usb_dev->speed == USB_SPEED_SUPER) {
                        mutex_unlock(&usb_bus_list_lock);
                        dev_dbg(parent_dev, "can't read %s bos descriptor %d\n",
                                        dev_name(&usb_dev->dev), retval);