linux-kernel - [PATCH 01/22] mm/damon/tests/core-kunit: fix memory leak in damon_test_set_filters_default

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Message-ID: <20251101182021.74868-2-sj@kernel.org>
Date: Sat,  1 Nov 2025 11:19:55 -0700
From: SeongJae Park <sj@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: SeongJae Park <sj@...nel.org>,
	"# 6 . 16 . x" <stable@...r.kernel.org>,
	Brendan Higgins <brendan.higgins@...ux.dev>,
	David Gow <davidgow@...gle.com>,
	damon@...ts.linux.dev,
	kunit-dev@...glegroups.com,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH 01/22] mm/damon/tests/core-kunit: fix memory leak in damon_test_set_filters_default_reject()

Kunit test function for damos_set_filters_default_reject() allocates two
'struct damos_filter' objects and not deallocates those, so that the
memory for the two objects are leaked for every time the test runs.  Fix
this by deallocating those objects at the end of the test code.

Fixes: 094fb14913c7 ("mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject()")
Cc: <stable@...r.kernel.org> # 6.16.x
Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/tests/core-kunit.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index 51369e35298b..69ca44f9270b 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -598,6 +598,9 @@ static void damon_test_set_filters_default_reject(struct kunit *test)
 	 */
 	KUNIT_EXPECT_EQ(test, scheme.core_filters_default_reject, false);
 	KUNIT_EXPECT_EQ(test, scheme.ops_filters_default_reject, true);
+
+	damos_free_filter(anon_filter);
+	damos_free_filter(target_filter);
 }
 
 static struct kunit_case damon_test_cases[] = {
-- 
2.47.3