linux-kernel - Re: [PATCH v2 1/3] usb: typec: Set port->pd before adding device for typec

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Message-ID: <ZJ7M8T9q2oGGvuam@kuha.fi.intel.com>
Date:   Fri, 30 Jun 2023 15:39:13 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Kyle Tso <kyletso@...gle.com>
Cc:     gregkh@...uxfoundation.org, badhri@...gle.com,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH v2 1/3] usb: typec: Set port->pd before adding device for
 typec_port

On Fri, Jun 23, 2023 at 11:10:34PM +0800, Kyle Tso wrote:
> When calling device_add in the registration of typec_port, it will do
> the NULL check on usb_power_delivery handle in typec_port for the
> visibility of the device attributes. It is always NULL because port->pd
> is set in typec_port_set_usb_power_delivery which is later than the
> device_add call.
> 
> Set port->pd before device_add and only link the device after that.
> 
> Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners")
> Cc: stable@...r.kernel.org
> Signed-off-by: Kyle Tso <kyletso@...gle.com>

Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

thanks,

-- 
heikki