linux-kernel - Re: [PATCH update] PM: Introduce core framework for run-time PM of I/O devices (rev. 12)

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Message-ID: <Pine.LNX.4.44L0.0908070957010.2886-100000@iolanthe.rowland.org>
Date:	Fri, 7 Aug 2009 09:59:45 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Linux-pm mailing list <linux-pm@...ts.linux-foundation.org>,
	Magnus Damm <magnus.damm@...il.com>, Greg KH <gregkh@...e.de>,
	Pavel Machek <pavel@....cz>, Len Brown <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH update] PM: Introduce core framework for run-time PM of
 I/O devices (rev. 12)

On Thu, 6 Aug 2009, Rafael J. Wysocki wrote:

> > If we defer a resume request while a suspend is in progress, then when
> > the suspend finishes should the resume be carried out immediately
> > rather than queued?  I don't see any reason why not.
> 
> Well, it's not very clear what to return to the caller in such a case.  I guess
> we can return -EAGAIN.

I would have said to return 0, just as if the resume had been queued.  
But it doesn't matter very much.

Alan Stern

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