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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 /include/acpi/button.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 'include/acpi/button.h')
| -rw-r--r-- | include/acpi/button.h | 18 |
1 files changed, 18 insertions, 0 deletions
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 */ |