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 --- include/acpi/button.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 include/acpi/button.h (limited to 'include/acpi/button.h') diff --git a/include/acpi/button.h b/include/acpi/button.h new file mode 100644 index 000000000..af2fce5d2 --- /dev/null +++ b/include/acpi/button.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ACPI_BUTTON_H +#define ACPI_BUTTON_H + +#define ACPI_BUTTON_HID_POWER "PNP0C0C" +#define ACPI_BUTTON_HID_LID "PNP0C0D" +#define ACPI_BUTTON_HID_SLEEP "PNP0C0E" + +#if IS_ENABLED(CONFIG_ACPI_BUTTON) +extern int acpi_lid_open(void); +#else +static inline int acpi_lid_open(void) +{ + return 1; +} +#endif /* IS_ENABLED(CONFIG_ACPI_BUTTON) */ + +#endif /* ACPI_BUTTON_H */ -- cgit v1.3.1