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/gpu/intel-display/index.rst | 46 +++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/gpu/intel-display/index.rst (limited to 'Documentation/gpu/intel-display/index.rst') diff --git a/Documentation/gpu/intel-display/index.rst b/Documentation/gpu/intel-display/index.rst new file mode 100644 index 000000000..e81f49bf2 --- /dev/null +++ b/Documentation/gpu/intel-display/index.rst @@ -0,0 +1,46 @@ +.. SPDX-License-Identifier: MIT +.. Copyright © 2026 Intel Corporation + +.. _drm/intel-display: + +==================== +Intel Display Driver +==================== + +The Intel display driver provides the display, or :ref:`drm-kms`, support for +both the :ref:`drm/xe ` and :ref:`drm/i915 ` Intel GPU +drivers. + +The source code currently resides under ``drivers/gpu/drm/i915/display`` due to +historical reasons, and it's compiled separately into both drm/xe and drm/i915 +kernel modules. + +The drm/xe and drm/i915 drivers are the "core" or "parent" drivers for display, +as they initialize and own the drm device, and pass that on to the display +driver. The display driver isn't an independent driver in that sense. + +.. toctree:: + :maxdepth: 1 + :caption: Detailed display topics + + async-flip + atomic + audio + casf + cdclk + cmtg + dmc + dpio + dpll + drrs + dsb + fbc + fifo-underrun + frontbuffer + hotplug + dp-link-training + dp-link-capabilities + plane + psr + snps-phy + vbt -- cgit v1.3.1