return 0;
 }
 
-static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
+static const struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
        .interface_reset        = saa7134_go7007_interface_reset,
        .write_interrupt        = saa7134_go7007_write_interrupt,
        .read_interrupt         = saa7134_go7007_read_interrupt,
 
        struct i2c_adapter i2c_adapter;
 
        /* HPI driver */
-       struct go7007_hpi_ops *hpi_ops;
+       const struct go7007_hpi_ops *hpi_ops;
        void *hpi_context;
        int interrupt_available;
        wait_queue_head_t interrupt_waitq;
 
        kfree(go->hpi_context);
 }
 
-static struct go7007_hpi_ops go7007_usb_ezusb_hpi_ops = {
+static const struct go7007_hpi_ops go7007_usb_ezusb_hpi_ops = {
        .interface_reset        = go7007_usb_interface_reset,
        .write_interrupt        = go7007_usb_ezusb_write_interrupt,
        .read_interrupt         = go7007_usb_read_interrupt,
        .release                = go7007_usb_release,
 };
 
-static struct go7007_hpi_ops go7007_usb_onboard_hpi_ops = {
+static const struct go7007_hpi_ops go7007_usb_onboard_hpi_ops = {
        .interface_reset        = go7007_usb_interface_reset,
        .write_interrupt        = go7007_usb_onboard_write_interrupt,
        .read_interrupt         = go7007_usb_read_interrupt,