The device managed resources are freed when the device is detached, so it has to be bound in the first place.
Let's create a fake driver that we will bind to our fake device to benefit from the device managed cleanups in our tests.
Reviewed-by: Maíra Canal mcanal@igalia.com Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/tests/drm_kunit_helpers.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c index b66ce779511b..9bfd3cb9cde1 100644 --- a/drivers/gpu/drm/tests/drm_kunit_helpers.c +++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c @@ -18,12 +18,32 @@ struct kunit_dev { static const struct drm_mode_config_funcs drm_mode_config_funcs = { };
+static int fake_probe(struct platform_device *pdev) +{ + return 0; +} + +static int fake_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver fake_platform_driver = { + .probe = fake_probe, + .remove = fake_remove, + .driver = { + .name = KUNIT_DEVICE_NAME, + }, +}; + /** * drm_kunit_helper_alloc_device - Allocate a mock device for a KUnit test * @test: The test context object * * This allocates a fake struct &device to create a mock for a KUnit - * test. + * test. The device will also be bound to a fake driver. It will thus be + * able to leverage the usual infrastructure and most notably the + * device-managed resources just like a "real" device. * * Callers need to make sure drm_kunit_helper_free_device() on the * device when done. @@ -36,6 +56,9 @@ struct device *drm_kunit_helper_alloc_device(struct kunit *test) struct platform_device *pdev; int ret;
+ ret = platform_driver_register(&fake_platform_driver); + KUNIT_ASSERT_EQ(test, ret, 0); + pdev = platform_device_alloc(KUNIT_DEVICE_NAME, PLATFORM_DEVID_NONE); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev);
@@ -58,6 +81,7 @@ void drm_kunit_helper_free_device(struct kunit *test, struct device *dev) struct platform_device *pdev = to_platform_device(dev);
platform_device_unregister(pdev); + platform_driver_unregister(&fake_platform_driver); } EXPORT_SYMBOL_GPL(drm_kunit_helper_free_device);