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

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Date:   Fri, 23 Jun 2023 18:08:34 +0800
From:   Kyle Tso <kyletso@...gle.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     heikki.krogerus@...ux.intel.com, badhri@...gle.com,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] usb: typec: Set port->pd before adding device for typec_port

On Fri, Jun 23, 2023 at 3:50 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Thu, Jun 22, 2023 at 11:04:21PM +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")
> > Signed-off-by: Kyle Tso <kyletso@...gle.com>
>
> Shouldn't all of these also have a cc: stable@ line in them as well?
>
> thanks,
>
> greg k-h

Will do in v2

Kyle