[PATCH] of: unittest: Run overlay apply/revert sequence three times

[Geert Uytterhoeven <geert+renesas@glider.be>]

Run the test for the overlay apply/revert sequence three times, to
test if there are unbalanced of_node_put() calls causing reference
counts to become negative.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
This is a reproducer for the issue fixed by commit 7882541ca06d51a6
("of/platform: increase refcount of fwnode") in dt/linus.
---
 drivers/of/unittest.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 9af5337c76f62162..67e32977341a6f0c 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -3035,6 +3035,7 @@ static void __init of_unittest_overlay_notify(void)
 static void __init of_unittest_overlay(void)
 {
 	struct device_node *bus_np = NULL;
+	unsigned int i;
 
 	if (platform_driver_register(&unittest_driver)) {
 		unittest(0, "could not register unittest driver\n");
@@ -3072,7 +3073,8 @@ static void __init of_unittest_overlay(void)
 	of_unittest_overlay_2();
 	of_unittest_overlay_3();
 	of_unittest_overlay_4();
-	of_unittest_overlay_5();
+	for (i = 0; i < 3; i++)
+		of_unittest_overlay_5();
 	of_unittest_overlay_6();
 	of_unittest_overlay_8();
 
-- 
2.34.1