USB: remove OTG build warning

Somewhere along the line, a variable in a USB-OTG codepath
stopped being used; this removes the relevant compiler warning.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 00441cd..2a8cb3c 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1254,8 +1254,7 @@ int usb_new_device(struct usb_device *udev)
                                        USB_DT_OTG, (void **) &desc) == 0) {
                        if (desc->bmAttributes & USB_OTG_HNP) {
                                unsigned                port1 = udev->portnum;
-                               struct usb_device       *root = udev->parent;
-                               
+
                                dev_info(&udev->dev,
                                        "Dual-Role OTG device on %sHNP port\n",
                                        (port1 == bus->otg_port)