isdn: hfcsusb: constify usb_device_id

usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.h b/drivers/isdn/hardware/mISDN/hfcsusb.h
index 4157311..5f8f1d9 100644 (file)
--- a/drivers/isdn/hardware/mISDN/hfcsusb.h
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.h
@@ -337,7 +337,7 @@ static const char *HFC_NT_LAYER1_STATES[HFC_MAX_NT_LAYER1_STATE + 1] = {
 };
 
 /* supported devices */
-static struct usb_device_id hfcsusb_idtab[] = {
+static const struct usb_device_id hfcsusb_idtab[] = {
        {
                USB_DEVICE(0x0959, 0x2bd0),
                .driver_info = (unsigned long) &((struct hfcsusb_vdata)