The device managed resources are ran if the device has bus, which is not the case of a root_device.
Let's use a platform_device instead. Signed-off-by: Maxime Ripard <[email protected]> --- drivers/gpu/drm/tests/drm_kunit_helpers.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c index 2f974f45c5b4..651aa93a98a8 100644 --- a/drivers/gpu/drm/tests/drm_kunit_helpers.c +++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c @@ -6,6 +6,7 @@ #include <kunit/resource.h> #include <linux/device.h> +#include <linux/platform_device.h> #include "drm_kunit_helpers.h" @@ -20,12 +21,26 @@ static const struct drm_mode_config_funcs drm_mode_config_funcs = { struct device *drm_kunit_helper_alloc_device(struct kunit *test) { - return root_device_register(FAKE_DEVICE_NAME); + struct platform_device *pdev; + int ret; + + ret = platform_driver_register(&fake_platform_driver); + KUNIT_ASSERT_EQ(test, ret, 0); + + pdev = platform_device_alloc(FAKE_DEVICE_NAME, PLATFORM_DEVID_NONE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev); + + ret = platform_device_add(pdev); + KUNIT_ASSERT_EQ(test, ret, 0); + + return &pdev->dev; } void drm_kunit_helper_free_device(struct kunit *test, struct device *dev) { - root_device_unregister(dev); + struct platform_device *pdev = to_platform_device(dev); + + platform_device_unregister(pdev); } struct drm_device * -- 2.38.1-b4-0.11.0-dev-d416f
