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Signed-off-by: Michał Winiarski --- drivers/gpu/drm/tests/drm_managed_test.c | 29 ++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c index 15bd2474440b5..ef5e784afbc6d 100644 --- a/drivers/gpu/drm/tests/drm_managed_test.c +++ b/drivers/gpu/drm/tests/drm_managed_test.c @@ -48,6 +48,34 @@ static void drm_test_managed_run_action(struct kunit *test) KUNIT_EXPECT_GT_MSG(test, ret, 0, "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); + + ret = wait_event_interruptible_timeout(priv->action_wq, priv->action_done, + msecs_to_jiffies(TEST_TIMEOUT_MS)); + KUNIT_EXPECT_EQ_MSG(test, ret, 0, "Unexpected release action call during cleanup"); +} + static int drm_managed_test_init(struct kunit *test) { struct managed_test_priv *priv; @@ -76,6 +104,7 @@ 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), {} };