usb: typec: ucsi: Fix missing link removal

The link between the partner device and its USB Power
Delivery instance was never removed which prevented the
device from being released. Removing the link always when
the partner is unregistered.

Fixes: b04e1747fbcc ("usb: typec: ucsi: Register USB Power Delivery Capabilities")
Cc: stable <stable@kernel.org>
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Closes: https://lore.kernel.org/linux-usb/ZSUMXdw9nanHtnw2@kuha.fi.intel.com/
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20231010141749.3912016-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 509c67c..61b6455 100644 (file)
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -787,6 +787,7 @@ static void ucsi_unregister_partner(struct ucsi_connector *con)
 
        typec_set_mode(con->port, TYPEC_STATE_SAFE);
 
+       typec_partner_set_usb_power_delivery(con->partner, NULL);
        ucsi_unregister_partner_pdos(con);
        ucsi_unregister_altmodes(con, UCSI_RECIPIENT_SOP);
        typec_unregister_partner(con->partner);