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 --- Documentation/devicetree/kernel-api.rst | 57 +++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/kernel-api.rst (limited to 'Documentation/devicetree/kernel-api.rst') diff --git a/Documentation/devicetree/kernel-api.rst b/Documentation/devicetree/kernel-api.rst new file mode 100644 index 000000000..b7429e6ed --- /dev/null +++ b/Documentation/devicetree/kernel-api.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. _devicetree: + +====================================== +DeviceTree Kernel API +====================================== + +Core functions +-------------- + +.. kernel-doc:: drivers/of/base.c + :export: + +.. kernel-doc:: include/linux/of.h + :internal: + +.. kernel-doc:: drivers/of/property.c + :export: + +.. kernel-doc:: include/linux/of_graph.h + :internal: + +.. kernel-doc:: drivers/of/address.c + :export: + +.. kernel-doc:: drivers/of/irq.c + :export: + +.. kernel-doc:: drivers/of/fdt.c + :export: + +Driver model functions +---------------------- + +.. kernel-doc:: include/linux/of_device.h + :internal: + +.. kernel-doc:: drivers/of/device.c + :export: + +.. kernel-doc:: include/linux/of_platform.h + :internal: + +.. kernel-doc:: drivers/of/platform.c + :export: + +Overlay and Dynamic DT functions +-------------------------------- + +.. kernel-doc:: drivers/of/resolver.c + :export: + +.. kernel-doc:: drivers/of/dynamic.c + :export: + +.. kernel-doc:: drivers/of/overlay.c + :export: -- cgit v1.3.1