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/misc/issei/cdev.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 drivers/misc/issei/cdev.h (limited to 'drivers/misc/issei/cdev.h') diff --git a/drivers/misc/issei/cdev.h b/drivers/misc/issei/cdev.h new file mode 100644 index 000000000..30075a624 --- /dev/null +++ b/drivers/misc/issei/cdev.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2023-2026 Intel Corporation */ +#ifndef _ISSEI_CDEV_H_ +#define _ISSEI_CDEV_H_ + +struct device; +struct issei_device; +struct issei_dma_length; +struct issei_hw_ops; + +struct issei_device *issei_register(size_t hw_size, struct device *parent, + const struct issei_dma_length *dma_length, + const struct issei_hw_ops *ops); +void issei_deregister(struct issei_device *idev); + +#endif /* _ISSEI_CDEV_H_ */ -- cgit v1.3.1