Re: [another PATCH] Fix crash on boot in kmalloc_node IDE changes

From: Andi Kleen
Date: Thu Jul 07 2005 - 11:34:16 EST


On Thu, Jul 07, 2005 at 09:21:55AM -0700, Christoph Lameter wrote:
> On Wed, 6 Jul 2005, Andi Kleen wrote:
>
> > Without this patch a dual Xeon EM64T machine would oops on boot
> > because the hwif pointer here was NULL. I also added a check for
> > pci_dev because it's doubtful that all IDE devices have pci_devs.
>
> Here is IMHO the right way to fix this. Test for the hwif != NULL and
> test for pci_dev != NULL before determining the node number of the pci
> bus that the device is connected to. Maybe we need a hwif_to_node for ide
> drivers that is also able to determine the locality of other hardware?

Hmm? Where is the difference?

This is 100% equivalent to my code except that you compressed
it all into a single expression.

The former one was more readable.

-Andi

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