linux-kernel - Re: [PATCH] pci: Fixing drivers/pci/search.c compilation warning.

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Date:	Tue, 21 Oct 2008 10:24:30 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Matthew Wilcox <matthew@....cx>
Cc:	linux-pci@...r.kernel.org, greg@...ah.com,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	stable@...nel.org, Rakib Mullick <rakib.mullick@...il.com>
Subject: Re: [PATCH] pci: Fixing drivers/pci/search.c compilation warning.

On Monday, October 20, 2008 6:13 pm Matthew Wilcox wrote:
> Subject: [PCI] Fix reference counting bug
>
> pci_get_subsys() will decrement the reference count of the device that
> it starts searching from.  Unfortunately, the pci_find_device() interface
> will already have decremented the reference count of the device earlier,
> so the device will end up losing all reference counts and be freed.
>
> We can fix this by incrementing the reference count of the device to
> start searching from before calling pci_get_subsys().
>
> Signed-off-by: Matthew Wilcox <willy@...ux.intel.com>

Applied, thanks Matthew.

Jesse
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