From 263f7d61a4201cde16849b2d016251806e7418be Mon Sep 17 00:00:00 2001 From: Fan Wu Date: Thu, 20 Aug 2026 13:53:06 +0000 Subject: usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stop cc_debounce_dwork is queued from the set_cc() and start_toggling() callbacks, which run from TCPM's kthread worker. port_stop() returns before tcpm_unregister_port() destroys that worker. Flushing the worker during unregister may therefore run a callback which queues the delayed work after port_stop() has returned. The delayed work can then run after devres has freed pmic_typec_port. Use disable_delayed_work_sync() in port_stop() to cancel a pending instance and prevent the TCPM callbacks from queueing another one. This issue was found by an in-house static analysis tool. Fixes: a4422ff22142 ("usb: typec: qcom: Add Qualcomm PMIC Type-C driver") Cc: stable # v6.10+ Assisted-by: Codex:gpt-5.6 Signed-off-by: Fan Wu Acked-by: Heikki Krogerus Link: https://patch.msgid.link/20260820135307.153773-2-fanwu01@zju.edu.cn Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/demangle-cxx.cpp | 49 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 tools/perf/util/demangle-cxx.cpp (limited to 'tools/perf/util/demangle-cxx.cpp') diff --git a/tools/perf/util/demangle-cxx.cpp b/tools/perf/util/demangle-cxx.cpp new file mode 100644 index 000000000..85b706641 --- /dev/null +++ b/tools/perf/util/demangle-cxx.cpp @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "demangle-cxx.h" +#include +#include +#include + +#ifdef HAVE_LIBBFD_SUPPORT +#define PACKAGE 'perf' +#include +#endif + +#ifdef HAVE_CXA_DEMANGLE_SUPPORT +#include +#endif + +#if defined(HAVE_LIBBFD_SUPPORT) || defined(HAVE_CPLUS_DEMANGLE_SUPPORT) +#ifndef DMGL_PARAMS +#define DMGL_PARAMS (1 << 0) /* Include function args */ +#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ +#endif +#endif + +/* + * Demangle C++ function signature + * + * Note: caller is responsible for freeing demangled string + */ +extern "C" +char *cxx_demangle_sym(const char *str, bool params __maybe_unused, + bool modifiers __maybe_unused) +{ +#ifdef HAVE_LIBBFD_SUPPORT + int flags = (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI : 0); + + return bfd_demangle(NULL, str, flags); +#elif defined(HAVE_CPLUS_DEMANGLE_SUPPORT) + int flags = (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI : 0); + + return cplus_demangle(str, flags); +#elif defined(HAVE_CXA_DEMANGLE_SUPPORT) + char *output; + int status; + + output = abi::__cxa_demangle(str, /*output_buffer=*/NULL, /*length=*/NULL, &status); + return output; +#else + return NULL; +#endif +} -- cgit v1.3.1