linux-kernel - [PATCH v1] usb: typec: tcpm: Update PD of Type-C port upon pd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date: Tue, 12 Mar 2024 01:23:06 +0800
From: Kyle Tso <kyletso@...gle.com>
To: linux@...ck-us.net, heikki.krogerus@...ux.intel.com, 
	gregkh@...uxfoundation.org
Cc: badhri@...gle.com, linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, 
	Kyle Tso <kyletso@...gle.com>, stable@...r.kernel.org
Subject: [PATCH v1] usb: typec: tcpm: Update PD of Type-C port upon pd_set

The PD of Type-C port needs to be updated in pd_set. Unlink the Type-C
port device to the old PD before linking it to a new one.

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
Cc: stable@...r.kernel.org
Signed-off-by: Kyle Tso <kyletso@...gle.com>
---
 drivers/usb/typec/tcpm/tcpm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 3d505614bff1..896f594b9328 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -6907,7 +6907,9 @@ static int tcpm_pd_set(struct typec_port *p, struct usb_power_delivery *pd)
 
 	port->port_source_caps = data->source_cap;
 	port->port_sink_caps = data->sink_cap;
+	typec_port_set_usb_power_delivery(p, NULL);
 	port->selected_pd = pd;
+	typec_port_set_usb_power_delivery(p, port->selected_pd);
 unlock:
 	mutex_unlock(&port->lock);
 	return ret;
-- 
2.44.0.278.ge034bb2e1d-goog