Re: baycom_par dereference before check.

[Jeff Garzik]

Dave Jones wrote:
> On Fri, Apr 16, 2004 at 05:48:57PM -0400, Jeff Garzik wrote:
>
>  > >Good point. Still doesn't strike me as particularly nice though.
>  > I would rather just remove the checks completely.  The success of any of 
>  > those checks is a BUG() condition that should never occur.
>
> That works for me too. How about this?
>
> 		Dave
>
> --- linux-2.6.5/drivers/net/hamradio/baycom_par.c~	2004-04-16 22:52:35.000000000 +0100
> +++ linux-2.6.5/drivers/net/hamradio/baycom_par.c	2004-04-16 22:52:53.000000000 +0100
> @@ -274,8 +274,8 @@
>  	struct net_device *dev = (struct net_device *)dev_id;
>  	struct baycom_state *bc = netdev_priv(dev);
>  
> -	if (!dev || !bc || bc->hdrv.magic != HDLCDRV_MAGIC)
> -		return;
> +	BUG_ON(!bc);
> +	BUG_ON(bc->hdrv.magic != HDLCDRV_MAGIC);


I applied a patch which simplied removed the checks.

	Jeff



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