linux-kernel - Re: [PATCH] pci: Make pci

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Message-ID: <20091205043747.GB10777@ldl.fc.hp.com>
Date:	Fri, 4 Dec 2009 21:37:47 -0700
From:	Alex Chiang <achiang@...com>
To:	Rakib Mullick <rakib.mullick@...il.com>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>, linux-pci@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] pci: Make pci_dev struct point to NULL.

* Alex Chiang <achiang@...com>:
> * Rakib Mullick <rakib.mullick@...il.com>:
> > On 12/5/09, Alex Chiang <achiang@...com> wrote:
> > > * Rakib Mullick <rakib.mullick@...il.com>:
> > >
> > > This is from Linus's latest tree:
> > >
> > >   974
> > >   975         if (slot->flags & SLOT_ENABLED)
> > >   976                 goto err_exit;
> > 
> > I'm talking about this line. From here we can hit 'goto err_exit' without
> > using pci_get_slot.
> 
> Right, so what's the problem? If the slot is not enabled, we goto
> err_exit and return, never touching dev.
 
Whoops, of course I meant if the slot is already enabled, then we
return early.

/ac

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