Hi Rafael, Here is a fix for a regression in 6.6 caused by: 0d16710146a1 ("ACPI: bus: Set driver_data to NULL every time .add() fails") the root cause here is the acpi_video.c code abusing the driver_data of a device for which it is not the driver, this fix addresses the root cause. This issue is being tracked here: https://gitlab.freedesktop.org/drm/intel/-/issues/9718 Regards, Hans Hans de Goede (1): ACPI: video: Use acpi_video_device for cooling-dev driver data drivers/acpi/acpi_video.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) -- 2.43.0