usb: typec: qcom-pmic-typec: disable cc_debounce_dwork on stopgrafted

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 <stable@kernel.org>  # v6.10+
Assisted-by: Codex:gpt-5.6
Signed-off-by: Fan Wu <fanwu01@zju.edu.cn>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260820135307.153773-2-fanwu01@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
new file mode 100644
index 000000000..34af57b8e
--- /dev/null
+++ b/tools/perf/MANIFEST
@@ -0,0 +1,36 @@
+COPYING
+LICENSES/preferred/GPL-2.0
+arch/arm64/tools/gen-sysreg.awk
+arch/arm64/tools/syscall_64.tbl
+arch/arm64/tools/sysreg
+arch/*/include/uapi/asm/bpf_perf_event.h
+include/uapi/asm-generic/Kbuild
+tools/perf
+tools/arch
+tools/scripts
+tools/build
+tools/include
+tools/lib/api
+tools/lib/bpf
+tools/lib/subcmd
+tools/lib/perf
+tools/lib/argv_split.c
+tools/lib/ctype.c
+tools/lib/hweight.c
+tools/lib/rbtree.c
+tools/lib/string.c
+tools/lib/symbol
+tools/lib/find_bit.c
+tools/lib/bitmap.c
+tools/lib/list_sort.c
+tools/lib/str_error_r.c
+tools/lib/vsprintf.c
+tools/lib/zalloc.c
+scripts/bpf_doc.py
+scripts/Kbuild.include
+scripts/Makefile.asm-headers
+scripts/syscall.tbl
+scripts/syscallhdr.sh
+tools/bpf/bpftool
+kernel/bpf/disasm.c
+kernel/bpf/disasm.h