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 --- tools/thermal/lib/log.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tools/thermal/lib/log.h (limited to 'tools/thermal/lib/log.h') diff --git a/tools/thermal/lib/log.h b/tools/thermal/lib/log.h new file mode 100644 index 000000000..be8ab5144 --- /dev/null +++ b/tools/thermal/lib/log.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/* Copyright (C) 2022, Linaro Ltd - Daniel Lezcano */ +#ifndef __THERMAL_TOOLS_LOG_H +#define __THERMAL_TOOLS_LOG_H + +#include + +#ifndef __maybe_unused +#define __maybe_unused __attribute__((__unused__)) +#endif + +#define TO_SYSLOG 0x1 +#define TO_STDOUT 0x2 +#define TO_STDERR 0x4 + +extern void logit(int level, const char *format, ...); + +#define DEBUG(fmt, ...) logit(LOG_DEBUG, "%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__) +#define INFO(fmt, ...) logit(LOG_INFO, fmt, ##__VA_ARGS__) +#define NOTICE(fmt, ...) logit(LOG_NOTICE, fmt, ##__VA_ARGS__) +#define WARN(fmt, ...) logit(LOG_WARNING, fmt, ##__VA_ARGS__) +#define ERROR(fmt, ...) logit(LOG_ERR, fmt, ##__VA_ARGS__) +#define CRITICAL(fmt, ...) logit(LOG_CRIT, fmt, ##__VA_ARGS__) +#define ALERT(fmt, ...) logit(LOG_ALERT, fmt, ##__VA_ARGS__) +#define EMERG(fmt, ...) logit(LOG_EMERG, fmt, ##__VA_ARGS__) + +int log_init(int level, const char *ident, int options); +int log_str2level(const char *lvl); +void log_exit(void); + +#endif -- cgit v1.3.1