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 --- rust/helpers/srcu.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 rust/helpers/srcu.c (limited to 'rust/helpers/srcu.c') diff --git a/rust/helpers/srcu.c b/rust/helpers/srcu.c new file mode 100644 index 000000000..1a2f56364 --- /dev/null +++ b/rust/helpers/srcu.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +__rust_helper int rust_helper_init_srcu_struct_with_key(struct srcu_struct *ssp, + const char *name, + struct lock_class_key *key) +{ + return __init_srcu_struct(ssp, name, key); +} + +__rust_helper bool rust_helper_srcu_readers_active(struct srcu_struct *ssp) +{ + return srcu_readers_active(ssp); +} + +__rust_helper int rust_helper_srcu_read_lock(struct srcu_struct *ssp) +{ + return srcu_read_lock(ssp); +} + +__rust_helper void rust_helper_srcu_read_unlock(struct srcu_struct *ssp, int idx) +{ + srcu_read_unlock(ssp, idx); +} + +__rust_helper void rust_helper_srcu_barrier(struct srcu_struct *ssp) +{ + srcu_barrier(ssp); +} + +__rust_helper void rust_helper_synchronize_srcu_expedited(struct srcu_struct *ssp) +{ + synchronize_srcu_expedited(ssp); +} -- cgit v1.3.1