media: v4l: async: Avoid a goto in loop implementation

Replace a goto-based loop by a while loop.
Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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

@@ -820,20 +820,16 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 		if (!v4l2_dev)
 			continue;
 
-again:
-		asc = v4l2_async_find_match(notifier, sd);
-		if (!asc)
-			continue;
-
-		ret = v4l2_async_match_notify(notifier, v4l2_dev, sd, asc);
+		while ((asc = v4l2_async_find_match(notifier, sd))) {
+			ret = v4l2_async_match_notify(notifier, v4l2_dev, sd,
+						      asc);
 			if (ret)
 				goto err_unbind;
 
 			ret = v4l2_async_nf_try_complete(notifier);
 			if (ret)
 				goto err_unbind;
-
-		goto again;
+		}
 	}
 
 	/* None matched, wait for hot-plugging */