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 --- sound/firewire/packets-buffer.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 sound/firewire/packets-buffer.h (limited to 'sound/firewire/packets-buffer.h') diff --git a/sound/firewire/packets-buffer.h b/sound/firewire/packets-buffer.h new file mode 100644 index 000000000..99e963c27 --- /dev/null +++ b/sound/firewire/packets-buffer.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED +#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED + +#include +#include + +/** + * struct iso_packets_buffer - manages a buffer for many packets + * @iso_buffer: the memory containing the packets + * @packets: an array, with each element pointing to one packet + */ +struct iso_packets_buffer { + struct fw_iso_buffer iso_buffer; + struct { + void *buffer; + unsigned int offset; + } *packets; +}; + +int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit, + unsigned int count, unsigned int packet_size, + enum dma_data_direction direction); +void iso_packets_buffer_destroy(struct iso_packets_buffer *b, + struct fw_unit *unit); + +#endif -- cgit v1.3.1