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/rtc/rtc-sa1100.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 drivers/rtc/rtc-sa1100.h (limited to 'drivers/rtc/rtc-sa1100.h') diff --git a/drivers/rtc/rtc-sa1100.h b/drivers/rtc/rtc-sa1100.h new file mode 100644 index 000000000..cc724f5b0 --- /dev/null +++ b/drivers/rtc/rtc-sa1100.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __RTC_SA1100_H__ +#define __RTC_SA1100_H__ + +#include + +struct clk; +struct platform_device; + +struct sa1100_rtc { + spinlock_t lock; + void __iomem *rcnr; + void __iomem *rtar; + void __iomem *rtsr; + void __iomem *rttr; + int irq_1hz; + int irq_alarm; + struct rtc_device *rtc; + struct clk *clk; +}; + +int sa1100_rtc_init(struct platform_device *pdev, struct sa1100_rtc *info); + +#endif -- cgit v1.3.1