[PATCH v4 5/6] drm/tests: managed: Extract device initialization into test init

[Michał Winiarski <michal.winiarski@xxxxxxxxx>]

It simplifies the process of extending the test suite with additional
test cases without unnecessary duplication.

Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>
---
 drivers/gpu/drm/tests/drm_managed_test.c | 37 +++++++++++++++---------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/tests/drm_managed_test.c b/drivers/gpu/drm/tests/drm_managed_test.c
index 986a38c9144a5..c1fc1f0aac9b2 100644
--- a/drivers/gpu/drm/tests/drm_managed_test.c
+++ b/drivers/gpu/drm/tests/drm_managed_test.c
@@ -9,6 +9,7 @@
 #include <linux/device.h>
 
 struct managed_test_priv {
+	struct drm_device *drm;
 	bool action_done;
 };
 
@@ -24,11 +25,26 @@ static void drm_action(struct drm_device *drm, void *ptr)
  * device is released.
  */
 static void drm_test_managed_run_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);
+
+	drm_dev_unregister(priv->drm);
+	drm_kunit_helper_free_device(test, priv->drm->dev);
+
+	KUNIT_EXPECT_TRUE_MSG(test, priv->action_done, "Release action was not called");
+}
+
+static int drm_managed_test_init(struct kunit *test)
 {
 	struct managed_test_priv *priv;
-	struct drm_device *drm;
 	struct device *dev;
-	int ret;
 
 	priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv);
@@ -41,19 +57,13 @@ static void drm_test_managed_run_action(struct kunit *test)
 	 * to remain allocated beyond both parent device and drm_device
 	 * lifetime.
 	 */
-	drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET);
-	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm);
+	priv->drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*priv->drm), 0,
+							DRIVER_MODESET);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
 
-	ret = drmm_add_action_or_reset(drm, drm_action, priv);
-	KUNIT_EXPECT_EQ(test, ret, 0);
+	test->priv = priv;
 
-	ret = drm_dev_register(drm, 0);
-	KUNIT_ASSERT_EQ(test, ret, 0);
-
-	drm_dev_unregister(drm);
-	drm_kunit_helper_free_device(test, dev);
-
-	KUNIT_EXPECT_TRUE_MSG(test, priv->action_done, "Release action was not called");
+	return 0;
 }
 
 static struct kunit_case drm_managed_tests[] = {
@@ -63,6 +73,7 @@ static struct kunit_case drm_managed_tests[] = {
 
 static struct kunit_suite drm_managed_test_suite = {
 	.name = "drm_test_managed",
+	.init = drm_managed_test_init,
 	.test_cases = drm_managed_tests
 };
 
-- 
2.43.0