usb: typec: qcom-pmic-typec: drain cc_debounce_dwork if port_start() fails

cc_debounce_dwork can be queued before port_start() fails:
tcpm_register_port() runs first, and its state machine may invoke
set_cc() or start_toggling() from the TCPM worker.  The error path then
calls tcpm_unregister_port(), whose worker flush may queue the delayed
work before devres frees pmic_typec_port.

Disable and drain the delayed work directly at port_start()'s error
exit.  Do not use port_stop() for this path: its IRQs use IRQF_NO_AUTOEN
and are enabled only after a successful port_start().

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+
Suggested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
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/20260820135307.153773-3-fanwu01@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions