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 --- .../bindings/siox/eckelmann,siox-gpio.yaml | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/siox/eckelmann,siox-gpio.yaml (limited to 'Documentation/devicetree/bindings/siox') diff --git a/Documentation/devicetree/bindings/siox/eckelmann,siox-gpio.yaml b/Documentation/devicetree/bindings/siox/eckelmann,siox-gpio.yaml new file mode 100644 index 000000000..2ff204109 --- /dev/null +++ b/Documentation/devicetree/bindings/siox/eckelmann,siox-gpio.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/siox/eckelmann,siox-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Eckelmann SIOX GPIO bus + +maintainers: + - Frank Li + +properties: + compatible: + const: eckelmann,siox-gpio + + din-gpios: + maxItems: 1 + + dout-gpios: + maxItems: 1 + + dclk-gpios: + maxItems: 1 + + dld-gpios: + maxItems: 1 + +required: + - compatible + - din-gpios + - dout-gpios + - dclk-gpios + - dld-gpios + +additionalProperties: false + +examples: + - | + siox { + compatible = "eckelmann,siox-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_siox>; + + din-gpios = <&gpio6 11 0>; + dout-gpios = <&gpio6 8 0>; + dclk-gpios = <&gpio6 9 0>; + dld-gpios = <&gpio6 10 0>; + }; -- cgit v1.3.1