V4L/DVB: cx23885: Add a v4l2_subdev group id for the CX2388[578] integrated AV core

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index e958674..b083e5d 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -1192,7 +1192,10 @@
 		dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 				&dev->i2c_bus[2].i2c_adap,
 				"cx25840", "cx25840", 0x88 >> 1, NULL);
-		v4l2_subdev_call(dev->sd_cx25840, core, load_fw);
+		if (dev->sd_cx25840) {
+			dev->sd_cx25840->grp_id = CX23885_HW_AV_CORE;
+			v4l2_subdev_call(dev->sd_cx25840, core, load_fw);
+		}
 		break;
 	}