linux-kernel - Re: [PATCH v2 2/2] usb: ulpi: Call of_node

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Message-ID: <YfFG1gjpjAkiG64+@kroah.com>
Date:   Wed, 26 Jan 2022 14:04:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Sean Anderson <sean.anderson@...o.com>
Cc:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] usb: ulpi: Call of_node_put correctly

On Tue, Jan 25, 2022 at 11:53:58AM -0500, Sean Anderson wrote:
> Hi Heikki,
> 
> On 1/25/22 4:18 AM, Heikki Krogerus wrote:
> > On Mon, Jan 24, 2022 at 12:33:44PM -0500, Sean Anderson wrote:
> >> of_node_put should always be called on device nodes gotten from
> >> of_get_*. Additionally, it should only be called after there are no
> >> remaining users. To address the first issue, call of_node_put if later
> >> steps in ulpi_register fail. To address the latter, call of_node_put
> >> only after calling device_unregister.
> > 
> > This looks like a fix, but you don't have the fix tag.
> 
> You're right this should have
> 
> Fixes: ef6a7bcfb01c ("usb: ulpi: Support device discovery via DT")

Please resend this as 2 independent patches as they should not depend on
each other, allowing this one to be backported, but the debugfs addition
added only to 5.18-rc1.

thanks,

greg k-h