On Sat, Mar 01, 2025 at 08:10:56AM +0000, Andrei Kuchynski wrote:
> Resources should be released only after all threads that utilize them
> have been destroyed.
> This commit ensures that resources are not released prematurely by waiting
> for the associated workqueue to complete before deallocating them.
>
> Signed-off-by: Andrei Kuchynski <akuchynski@xxxxxxxxxxxx>
This needs to be marked as a fix. Please add the appropriate Fixes
tag and Cc stable.
thanks,
> ---
> drivers/usb/typec/ucsi/ucsi.c | 13 +++++++------
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> index fcf499cc9458..43b4f8207bb3 100644
> --- a/drivers/usb/typec/ucsi/ucsi.c
> +++ b/drivers/usb/typec/ucsi/ucsi.c
> @@ -1825,11 +1825,11 @@ static int ucsi_init(struct ucsi *ucsi)
>
> err_unregister:
> for (con = connector; con->port; con++) {
> + if (con->wq)
> + destroy_workqueue(con->wq);
> ucsi_unregister_partner(con);
> ucsi_unregister_altmodes(con, UCSI_RECIPIENT_CON);
> ucsi_unregister_port_psy(con);
> - if (con->wq)
> - destroy_workqueue(con->wq);
>
> usb_power_delivery_unregister_capabilities(con->port_sink_caps);
> con->port_sink_caps = NULL;
> @@ -2013,10 +2013,6 @@ void ucsi_unregister(struct ucsi *ucsi)
>
> for (i = 0; i < ucsi->cap.num_connectors; i++) {
> cancel_work_sync(&ucsi->connector[i].work);
> - ucsi_unregister_partner(&ucsi->connector[i]);
> - ucsi_unregister_altmodes(&ucsi->connector[i],
> - UCSI_RECIPIENT_CON);
> - ucsi_unregister_port_psy(&ucsi->connector[i]);
>
> if (ucsi->connector[i].wq) {
> struct ucsi_work *uwork;
> @@ -2032,6 +2028,11 @@ void ucsi_unregister(struct ucsi *ucsi)
> destroy_workqueue(ucsi->connector[i].wq);
> }
>
> + ucsi_unregister_partner(&ucsi->connector[i]);
> + ucsi_unregister_altmodes(&ucsi->connector[i],
> + UCSI_RECIPIENT_CON);
> + ucsi_unregister_port_psy(&ucsi->connector[i]);
> +
> usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_sink_caps);
> ucsi->connector[i].port_sink_caps = NULL;
> usb_power_delivery_unregister_capabilities(ucsi->connector[i].port_source_caps);
> --
> 2.48.1.711.g2feabab25a-goog
--
heikki
