linux-kernel - Re: [PATCH 1/8] PM / Sleep: Initialize wakeup source locks in wakeup_source

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Date:	Tue, 07 Feb 2012 14:29:51 -0800
From:	John Stultz <john.stultz@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux PM list <linux-pm@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>, markgross@...gnar.org,
	Matthew Garrett <mjg@...hat.com>,
	Greg KH <greg@...uxfoundation.org>,
	Arve Hjønnevåg <arve@...roid.com>,
	Brian Swetland <swetland@...gle.com>,
	Neil Brown <neilb@...e.de>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [PATCH 1/8] PM / Sleep: Initialize wakeup source locks in
 wakeup_source_add()

On Tue, 2012-02-07 at 02:01 +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rjw@...k.pl>
> 
> Initialize wakeup source locks in wakeup_source_add() instead of
> wakeup_source_create(), because otherwise the locks of the wakeup
> sources that haven't been allocated with wakeup_source_create()
> aren't initialized and handled properly.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

Ah, I've shot myself in the foot before, forgetting to init the wakeup
source, so this should be good. Although, would a WARN_ON be better then
just initializing the lock in add? That way bad behavior is more likely
to be corrected, rather then just ignored.

thanks
-john

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