linux-kernel - Re: [PATCH V2 4/4] i8042: support async suspend and shutdown

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Message-ID: <20090804134609.GK18974@elf.ucw.cz>
Date:	Tue, 4 Aug 2009 15:46:09 +0200
From:	Pavel Machek <pavel@....cz>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pm <linux-pm@...ts.linux-foundation.org>,
	linux-acpi <linux-acpi@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Len Brown <lenb@...nel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	"dtor@...l.ru" <dtor@...l.ru>
Subject: Re: [PATCH V2 4/4] i8042: support async suspend and shutdown


> > >  	panic_blink = i8042_panic_blink;
> > >  
> > >  	return 0;
> > >  
> > > + err_dev_async_unregister:
> > > +	dev_async_unregister(&i8042_platform_device->dev);
> > >   err_free_device:
> > >  	platform_device_put(i8042_platform_device);
> > >   err_unregister_driver:
> > 
> > I still do not like the interface: manually unregistering seems to be
> > ugly & error prone.
> > 
> hmm, yes, we can check device->dev_async and unregister it in driver
> core, at device_unregister time.
> 
> then I think we should rename the interfaces to:
> device_enable_async_action(dev, type),
> and device_disable_async_action(dev)
> so that they are more like driver core helper functions.
> what do you think?

Yes, that would be nicer.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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