drm/mediatek: ovl_adaptor: Fix probe device leaks

Make sure to drop the references taken to the component devices by
of_find_device_by_node() during probe on probe failure (e.g. probe
deferral) and on driver unbind.

Fixes: 453c3364632a ("drm/mediatek: Add ovl_adaptor support for MT8195")
Cc: [e-mail] # 6.4
Cc: Nancy.Lin <[e-mail]>
Signed-off-by: Johan Hovold <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Link: https://patchwork.kernel.org/project/dri-devel/patch/[e-mail]/
Signed-off-by: Chun-Kuang Hu <[e-mail]>

drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c

···
 	       type == OVL_ADAPTOR_TYPE_PADDING;
 }
 
+static void ovl_adaptor_put_device(void *_dev)
+{
+	struct device *dev = _dev;
+
+	put_device(dev);
+}
+
 static int ovl_adaptor_comp_init(struct device *dev, struct component_match **match)
 {
 	struct mtk_disp_ovl_adaptor *priv = dev_get_drvdata(dev);
···
 		comp_pdev = of_find_device_by_node(node);
 		if (!comp_pdev)
 			return -EPROBE_DEFER;
+
+		ret = devm_add_action_or_reset(dev, ovl_adaptor_put_device,
+					       &comp_pdev->dev);
+		if (ret)
+			return ret;
 
 		priv->ovl_adaptor_comp[id] = &comp_pdev->dev;