Re: [PATCH] usb: typec: qcom-pmic: cancel reset_work on stop

[Heikki Krogerus <heikki.krogerus@linux.intel.com>]

On Wed, Aug 19, 2026 at 04:14:48PM +0000, Fan Wu wrote:
> pdphy_stop() disables IRQs but leaves reset_work pending.  If the IRQ
> handler schedules it just before disable_irq(), the work runs after
> remove() frees the struct via devm.
> 
> Call cancel_work_sync() after disabling IRQs to close the window.
> 
> This issue was found by an in-house static analysis tool.
> 
> Fixes: a4422ff22142 ("usb: typec: qcom: Add Qualcomm PMIC Type-C driver")
> Cc: stable@vger.kernel.org
> Assisted-by: Codex:gpt-5.6
> Signed-off-by: Fan Wu <fanwu01@zju.edu.cn>

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

> ---
>  drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
> index c8b1463e6..abb9d0321 100644
> --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
> +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c
> @@ -544,6 +544,8 @@ static void qcom_pmic_typec_pdphy_stop(struct pmic_typec *tcpm)
>  	for (i = 0; i < pmic_typec_pdphy->nr_irqs; i++)
>  		disable_irq(pmic_typec_pdphy->irq_data[i].irq);
>  
> +	cancel_work_sync(&pmic_typec_pdphy->reset_work);
> +
>  	qcom_pmic_typec_pdphy_reset_on(pmic_typec_pdphy);
>  
>  	regulator_disable(pmic_typec_pdphy->vdd_pdphy);

-- 
heikki