media: ivsc: csi: Clean up V4L2 async notifier on error

Clean up the V4L2 async notifier in error handling path, and add label to
unify handling.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Wentong Wu <wentong.wu@intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/pci/intel/ivsc/mei_csi.c

@@ -672,16 +672,20 @@ static int mei_csi_parse_firmware(struct mei_csi *csi)
 
 	asd = v4l2_async_nf_add_fwnode(&csi->notifier, fwnode,
 				       struct v4l2_async_connection);
+	fwnode_handle_put(fwnode);
 	if (IS_ERR(asd)) {
-		fwnode_handle_put(fwnode);
-		return PTR_ERR(asd);
+		ret = PTR_ERR(asd);
+		goto out_nf_cleanup;
 	}
 
-	fwnode_handle_put(fwnode);
-
 	ret = v4l2_async_nf_register(&csi->notifier);
 	if (ret)
-		v4l2_async_nf_cleanup(&csi->notifier);
+		goto out_nf_cleanup;
+
+	return 0;
+
+out_nf_cleanup:
+	v4l2_async_nf_cleanup(&csi->notifier);
 
 	return ret;
 }