media: v4l: fwnode: Parse the graph endpoint as last

Parsing the graph endpoint is always successful; therefore parse it as
last.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/v4l2-core/v4l2-fwnode.c

@@ -303,7 +303,11 @@ static int __v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwnode,
 
 	pr_debug("===== begin V4L2 endpoint properties\n");
 
-	fwnode_graph_parse_endpoint(fwnode, &vep->base);
+	/*
+	 * Zero the fwnode graph endpoint memory in case we don't end up parsing
+	 * the endpoint.
+	 */
+	memset(&vep->base, 0, sizeof(vep->base));
 
 	/* Zero fields from bus_type to until the end */
 	memset(&vep->bus_type, 0, sizeof(*vep) -
@@ -346,6 +350,8 @@ static int __v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwnode,
 		return -EINVAL;
 	}
 
+	fwnode_graph_parse_endpoint(fwnode, &vep->base);
+
 	return 0;
 }