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Signed-off-by: Michał Winiarski --- drivers/gpu/drm/tests/drm_managed_test.c | 28 ++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c index c1fc1f0aac9b2..91863642efc13 100644 --- a/drivers/gpu/drm/tests/drm_managed_test.c +++ b/drivers/gpu/drm/tests/drm_managed_test.c @@ -41,6 +41,33 @@ static void drm_test_managed_run_action(struct kunit *test) KUNIT_EXPECT_TRUE_MSG(test, priv->action_done, "Release action was not called"); } +/* + * The test verifies that the release action is called immediately when + * drmm_release_action is called and that it is not called for a second time + * when the device is released. + */ +static void drm_test_managed_release_action(struct kunit *test) +{ + struct managed_test_priv *priv = test->priv; + int ret; + + ret = drmm_add_action_or_reset(priv->drm, drm_action, priv); + KUNIT_EXPECT_EQ(test, ret, 0); + + ret = drm_dev_register(priv->drm, 0); + KUNIT_ASSERT_EQ(test, ret, 0); + + drmm_release_action(priv->drm, drm_action, priv); + KUNIT_EXPECT_TRUE_MSG(test, priv->action_done, "Release action was not called"); + priv->action_done = false; + + drm_dev_unregister(priv->drm); + drm_kunit_helper_free_device(test, priv->drm->dev); + + KUNIT_EXPECT_FALSE_MSG(test, priv->action_done, + "Unexpected release action call during cleanup"); +} + static int drm_managed_test_init(struct kunit *test) { struct managed_test_priv *priv; @@ -67,6 +94,7 @@ static int drm_managed_test_init(struct kunit *test) } static struct kunit_case drm_managed_tests[] = { + KUNIT_CASE(drm_test_managed_release_action), KUNIT_CASE(drm_test_managed_run_action), {} };