linux-kernel - [PATCH] of: unittest: Use of_property

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Message-ID: <20240731191312.1710417-10-robh@kernel.org>
Date: Wed, 31 Jul 2024 13:12:48 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Saravana Kannan <saravanak@...gle.com>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] of: unittest: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_find_property(). This is part of a larger effort to remove callers
of of_find_property() and similar functions. of_find_property() leaks
the DT struct property and data pointers which is a problem for
dynamically allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
 drivers/of/unittest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index c830f346df45..b60b4b7d7172 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -900,8 +900,8 @@ static void __init of_unittest_changeset(void)
 	unittest(!of_find_node_by_path("/testcase-data/changeset/n2/n21"),
 		 "'%pOF' still present after revert\n", n21);
 
-	ppremove = of_find_property(parent, "prop-remove", NULL);
-	unittest(ppremove, "failed to find removed prop after revert\n");
+	unittest(of_property_present(parent, "prop-remove"),
+		 "failed to find removed prop after revert\n");
 
 	ret = of_property_read_string(parent, "prop-update", &propstr);
 	unittest(!ret, "failed to find updated prop after revert\n");
-- 
2.43.0