bt->height += hdmi_read16(sd, 0x0b, 0xfff);
                        bt->il_vfrontporch = hdmi_read16(sd, 0x2c, 0x1fff) / 2;
                        bt->il_vsync = hdmi_read16(sd, 0x30, 0x1fff) / 2;
-                       bt->vbackporch = hdmi_read16(sd, 0x34, 0x1fff) / 2;
+                       bt->il_vbackporch = hdmi_read16(sd, 0x34, 0x1fff) / 2;
                }
                adv7604_fill_optional_dv_timings_fields(sd, timings);
        } else {
 
 
        v4l2_dbg(1, debug, sd, "%s:\n", __func__);
 
+       memset(timings, 0, sizeof(struct v4l2_dv_timings));
+
        /* SDP block */
        if (state->mode == ADV7842_MODE_SDP)
                return -ENODATA;
                                        hdmi_read(sd, 0x2d)) / 2;
                        bt->il_vsync = ((hdmi_read(sd, 0x30) & 0x1f) * 256 +
                                        hdmi_read(sd, 0x31)) / 2;
-                       bt->vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 +
+                       bt->il_vbackporch = ((hdmi_read(sd, 0x34) & 0x1f) * 256 +
                                        hdmi_read(sd, 0x35)) / 2;
                }
                adv7842_fill_optional_dv_timings_fields(sd, timings);