linux-kernel - Re: [PATCH] usb: typec: tcpm/tcpci

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Message-ID: <2025021314-obsolete-modify-2b96@gregkh>
Date: Thu, 13 Feb 2025 14:23:34 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: André Draszik <andre.draszik@...aro.org>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Peter Griffin <peter.griffin@...aro.org>,
	Tudor Ambarus <tudor.ambarus@...aro.org>,
	Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: typec: tcpm/tcpci_maxim: better interrupt name

On Thu, Feb 13, 2025 at 01:10:49PM +0000, André Draszik wrote:
> Thanks Greg,
> 
> On Thu, 2025-02-13 at 12:56 +0100, Greg Kroah-Hartman wrote:
> > At a quick glance, tcpci_register_port() is called earlier in the
> > function, but when you error out here you did not call
> > tcpci_unregister_port().  What else needs to also be unwound?
> 
> This driver manages everything using devres, including calling of
> tcpci_unregister_port() via devres:
> 
>         ret = devm_add_action_or_reset(&client->dev,
> 				       max_tcpci_unregister_tcpci_port,
> 				       chip->tcpci);
> 
> is done just after tcpci_register_port(). As far as I can see nothing
> needs to be unwound explicitly.

Ugh, that wasn't obvious at all, sorry about that.  Yet another reason
to hate devm apis :)

thanks,

greg k-h