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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 /io_uring/bpf-ops.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 'io_uring/bpf-ops.h')
| -rw-r--r-- | io_uring/bpf-ops.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/io_uring/bpf-ops.h b/io_uring/bpf-ops.h new file mode 100644 index 000000000..0b6d78949 --- /dev/null +++ b/io_uring/bpf-ops.h @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef IOU_BPF_OPS_H +#define IOU_BPF_OPS_H + +#include <linux/io_uring_types.h> + +enum { + IOU_REGION_MEM, + IOU_REGION_CQ, + IOU_REGION_SQ, +}; + +struct io_uring_bpf_ops { + int (*loop_step)(struct iou_ctx *, struct iou_loop_params *lp); + + __u32 ring_fd; + void *priv; +}; + +#ifdef CONFIG_IO_URING_BPF_OPS +void io_unregister_bpf_ops(struct io_ring_ctx *ctx); +#else +static inline void io_unregister_bpf_ops(struct io_ring_ctx *ctx) +{ +} +#endif + +#endif /* IOU_BPF_OPS_H */ |