netdev - Re: [patch -next v2] mv643xx_eth: potential null dereference

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Message-ID: <20100723221514.GJ26313@bicker>
Date:	Sat, 24 Jul 2010 00:15:14 +0200
From:	Dan Carpenter <error27@...il.com>
To:	walter harms <wharms@....de>
Cc:	Joe Perches <joe@...ches.com>,
	Lennert Buytenhek <buytenh@...tstofly.org>,
	"David S. Miller" <davem@...emloft.net>,
	Jiri Pirko <jpirko@...hat.com>,
	Denis Kirjanov <kirjanov@...il.com>,
	Saeed Bishara <saeed@...vell.com>, netdev@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch -next v2] mv643xx_eth: potential null dereference

On Fri, Jul 23, 2010 at 06:30:22PM +0200, walter harms wrote:
> this is a bit complicated, IMHO ppl have a bigger chance to discover what is going on
> with this version:
> 
>     if (!pd ) {
>        msp->t_clk = 133000000;
>        msp->tx_csum_limit = 9 * 1024;
>      }
>      else
>       {
> 	msp->t_clk = pd->t_clk ? pd->t_clk : 133000000 ;
>         msp->tx_csum_limit = pd->tx_csum_limit ? pd->tx_csum_limit : 9 * 1024;
>        }
> 

But then instead of 2 magic numbers we would have 4. :/

regards,
dan carpenter
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