linux-kernel - Re: [PATCH 6/17] arch/x86/kernel: Add missing spin

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Message-ID: <Pine.LNX.4.64.1006021042220.21701@ask.diku.dk>
Date:	Wed, 2 Jun 2010 10:42:32 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	"Roedel, Joerg" <Joerg.Roedel@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH 6/17] arch/x86/kernel: Add missing spin_unlock

On Wed, 2 Jun 2010, Roedel, Joerg wrote:

> Hi Andrew,
> 
> On Tue, Jun 01, 2010 at 05:15:29PM -0400, Andrew Morton wrote:
> > The reason why these bugs occur is that we sprinkle multiple `return'
> > statements inside the middle of non-trivial functions.  People miss
> > some or fail to modify some when later changing locking rules and we
> > gain bugs (or, similarly, resource leaks).
> 
> Right. I changed that in Julia's patch too before merging it into my
> tree. It is already in -tip. See
> http://git.kernel.org/tip/84fe6c19e4a598e8071e3bd1b2c923454eae1268

Thanks.  That looks fine.

julia
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