netdev - Re: [PATCH v2.6.22-rc5] cxgb2: handle possible NULL pointer dereferencing, take 2

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Message-ID: <468203F5.2020501@garzik.org>
Date:	Wed, 27 Jun 2007 02:30:13 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	pradeep singh <pradeep.rautela@...il.com>,
	akpm@...ux-foundation.org
CC:	trivial@...nel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2.6.22-rc5] cxgb2: handle possible NULL pointer dereferencing,
 take 2

pradeep singh wrote:
> Hi,
> This is second submission for a possible NULL dereference handling in
> the Chelsio's 10G driver.
> 
> Thanks to Jens Axboe for pointing out my mistake of ignoring
> subsequent dereferences in init_one routine.
> 
> Thanks
> 
> Signed-off-by: Pradeep Singh <pradeep.rautela@...il.com>
> ---
> drivers/net/chelsio/cxgb2.c |    5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c
> index 231ce43..006c634 100644
> --- a/drivers/net/chelsio/cxgb2.c
> +++ b/drivers/net/chelsio/cxgb2.c
> @@ -1022,6 +1022,11 @@ static int __devinit init_one(struct pci_dev *pdev,
>     mmio_start = pci_resource_start(pdev, 0);
>     mmio_len = pci_resource_len(pdev, 0);
>     bi = t1_get_board_info(ent->driver_data);
> +   
> +    if (!bi) {
> +                CH_ERR("%s: Board info array index out of
> range\n",pci_name(pdev));
> +                goto out_disable_pdev;
> +        }

NAK.  It's impossible to hit this condition.

	Jeff


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