[media] v4l: vsp1: sru: Fix the intensity control default value

The default value isn't set and defaults to 0, which isn't in the 1-6
min-max range. Fix it by setting the default value to 1.

This shoud have been caught when checking the control handler error
field at initialization time, but the check was missing. Add it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/vsp1/vsp1_sru.c

@@ -67,6 +67,7 @@ static const struct v4l2_ctrl_config sru_intensity_control = {
 	.type = V4L2_CTRL_TYPE_INTEGER,
 	.min = 1,
 	.max = 6,
+	.def = 1,
 	.step = 1,
 };
 
@@ -348,8 +349,17 @@ struct vsp1_sru *vsp1_sru_create(struct vsp1_device *vsp1)
 	/* Initialize the control handler. */
 	v4l2_ctrl_handler_init(&sru->ctrls, 1);
 	v4l2_ctrl_new_custom(&sru->ctrls, &sru_intensity_control, NULL);
-	v4l2_ctrl_handler_setup(&sru->ctrls);
+
 	sru->entity.subdev.ctrl_handler = &sru->ctrls;
 
+	if (sru->ctrls.error) {
+		dev_err(vsp1->dev, "sru: failed to initialize controls\n");
+		ret = sru->ctrls.error;
+		vsp1_entity_destroy(&sru->entity);
+		return ERR_PTR(ret);
+	}
+
+	v4l2_ctrl_handler_setup(&sru->ctrls);
+
 	return sru;
 }