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 --- io_uring/uring_cmd.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 io_uring/uring_cmd.h (limited to 'io_uring/uring_cmd.h') diff --git a/io_uring/uring_cmd.h b/io_uring/uring_cmd.h new file mode 100644 index 000000000..041aef8a8 --- /dev/null +++ b/io_uring/uring_cmd.h @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include + +struct io_async_cmd { + struct iou_vec vec; + struct io_uring_sqe sqes[2]; +}; + +int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags); +int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); +void io_uring_cmd_sqe_copy(struct io_kiocb *req); +void io_uring_cmd_cleanup(struct io_kiocb *req); + +bool io_uring_try_cancel_uring_cmd(struct io_ring_ctx *ctx, + struct io_uring_task *tctx, bool cancel_all); + +bool io_uring_cmd_post_mshot_cqe32(struct io_uring_cmd *cmd, + unsigned int issue_flags, + struct io_uring_cqe cqe[2]); + +void io_cmd_cache_free(const void *entry); + +int io_cmd_poll_multishot(struct io_uring_cmd *cmd, + unsigned int issue_flags, __poll_t mask); -- cgit v1.3.1