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| author | Haojie Li <lihaojie@kylinos.cn> | 2026-08-25 18:08:45 +0800 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2026-09-28 23:20:55 +0000 |
| commit | bce7698e2e6565bb765bd0522337f29f5f312624 (patch) | |
| tree | 0b735b7b4a27369cb4d75d9431b3ee59ce7e5bcc /tools/thermal/lib/log.h | |
| download | linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.tar.gz linux-stable-bce7698e2e6565bb765bd0522337f29f5f312624.zip | |
drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform devicegrafted
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 <lihaojie@kylinos.cn>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'tools/thermal/lib/log.h')
| -rw-r--r-- | tools/thermal/lib/log.h | 31 |
1 files changed, 31 insertions, 0 deletions
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 <daniel.lezcano@linaro.org> */ +#ifndef __THERMAL_TOOLS_LOG_H +#define __THERMAL_TOOLS_LOG_H + +#include <syslog.h> + +#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 |