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/perf/Documentation/jit-interface.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 tools/perf/Documentation/jit-interface.txt (limited to 'tools/perf/Documentation/jit-interface.txt') diff --git a/tools/perf/Documentation/jit-interface.txt b/tools/perf/Documentation/jit-interface.txt new file mode 100644 index 000000000..a8656f564 --- /dev/null +++ b/tools/perf/Documentation/jit-interface.txt @@ -0,0 +1,15 @@ +perf supports a simple JIT interface to resolve symbols for dynamic code generated +by a JIT. + +The JIT has to write a /tmp/perf-%d.map (%d = pid of process) file + +This is a text file. + +Each line has the following format, fields separated with spaces: + +START SIZE symbolname + +START and SIZE are hex numbers without 0x. +symbolname is the rest of the line, so it could contain special characters. + +The ownership of the file has to match the process. -- cgit v1.3.1