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/firmware/tegra/Kconfig | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 drivers/firmware/tegra/Kconfig (limited to 'drivers/firmware/tegra/Kconfig') diff --git a/drivers/firmware/tegra/Kconfig b/drivers/firmware/tegra/Kconfig new file mode 100644 index 000000000..3a9162706 --- /dev/null +++ b/drivers/firmware/tegra/Kconfig @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "Tegra firmware driver" + +config TEGRA_IVC + bool + depends on ARCH_TEGRA + help + IVC (Inter-VM Communication) protocol is part of the IPC + (Inter Processor Communication) framework on Tegra. It maintains the + data and the different communication channels in SysRAM or RAM and + keeps the content is synchronization between host CPU and remote + processors. + +config TEGRA_BPMP + bool "Tegra BPMP driver" + depends on ARCH_TEGRA && TEGRA_HSP_MBOX + depends on !CPU_BIG_ENDIAN + select TEGRA_IVC + help + BPMP (Boot and Power Management Processor) is designed to off-loading + the PM functions which include clock/DVFS/thermal/power from the CPU. + It needs HSP as the HW synchronization and notification module and + IVC module as the message communication protocol. + + This driver manages the IPC interface between host CPU and the + firmware running on BPMP. + +endmenu -- cgit v1.3.1