From bce7698e2e6565bb765bd0522337f29f5f312624 Mon Sep 17 00:00:00 2001 From: Haojie Li Date: Tue, 25 Aug 2026 18:08:45 +0800 Subject: drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device platform_device_register_data() can fail and return an ERR_PTR, but the return value is used without checking, leading to an invalid pointer being stored in ddp_comp[].dev and passed to component_match_add() and mtk_ddp_comp_init(), which could result in a kernel crash. Add an IS_ERR() check to jump to the error handling path on failure. Fixes: 0d9eee9118b7 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195") Cc: stable@vger.kernel.org Signed-off-by: Haojie Li Reviewed-by: CK Hu Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/ Signed-off-by: Chun-Kuang Hu --- drivers/acpi/dptf/Kconfig | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 drivers/acpi/dptf/Kconfig (limited to 'drivers/acpi/dptf/Kconfig') diff --git a/drivers/acpi/dptf/Kconfig b/drivers/acpi/dptf/Kconfig new file mode 100644 index 000000000..4b3fdc03e --- /dev/null +++ b/drivers/acpi/dptf/Kconfig @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: GPL-2.0 + +menuconfig ACPI_DPTF + bool "Intel DPTF (Dynamic Platform and Thermal Framework) Support" + depends on X86 + help + Intel Dynamic Platform and Thermal Framework (DPTF) is a platform + level hardware/software solution for power and thermal management. + + As a container for multiple power/thermal technologies, DPTF provides + a coordinated approach for different policies to effect the hardware + state of a system. + +if ACPI_DPTF + +config DPTF_POWER + tristate "Platform Power DPTF Participant" + default m + help + This driver adds support for Dynamic Platform and Thermal Framework + (DPTF) Platform Power Participant device (INT3407) support. + This participant is responsible for exposing platform telemetry: + max_platform_power + platform_power_source + adapter_rating + battery_steady_power + charger_type + + To compile this driver as a module, choose M here: + the module will be called dptf_power. + +config DPTF_PCH_FIVR + tristate "PCH FIVR DPTF Participant" + default m + help + This driver adds support for Dynamic Platform and Thermal Framework + (DPTF) PCH FIVR Participant device support. This driver allows to + switch the PCH FIVR (Fully Integrated Voltage Regulator) frequency. + This participant is responsible for exposing: + freq_mhz_low_clock + freq_mhz_high_clock + + To compile this driver as a module, choose M here: + the module will be called dptf_pch_fivr. + +endif -- cgit v1.3.1