diff options
| author | Andrei Kuchynski <akuchynski@chromium.org> | 2025-03-21 14:37:27 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-02 07:59:31 +0200 |
| commit | 40966fc9939e85677fdb489dfddfa205baaad03b (patch) | |
| tree | b10bf11521cc061b7b5045e7046af11702f388ae | |
| parent | 45314999f950321a341033ae8f9ac12dce40669b (diff) | |
usb: typec: class: Invalidate USB device pointers on partner unregistration
commit 66e1a887273c6b89f09bc11a40d0a71d5a081a8e upstream.
To avoid using invalid USB device pointers after a Type-C partner
disconnects, this patch clears the pointers upon partner unregistration.
This ensures a clean state for future connections.
Cc: stable@vger.kernel.org
Fixes: 59de2a56d127 ("usb: typec: Link enumerated USB devices with Type-C partner")
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20250321143728.4092417-3-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/typec/class.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index bdccf77260e6..3bdecfd918af 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -966,10 +966,14 @@ void typec_unregister_partner(struct typec_partner *partner) port = to_typec_port(partner->dev.parent); mutex_lock(&port->partner_link_lock); - if (port->usb2_dev) + if (port->usb2_dev) { typec_partner_unlink_device(partner, port->usb2_dev); - if (port->usb3_dev) + port->usb2_dev = NULL; + } + if (port->usb3_dev) { typec_partner_unlink_device(partner, port->usb3_dev); + port->usb3_dev = NULL; + } device_unregister(&partner->dev); mutex_unlock(&port->partner_link_lock); |