Re: [PATCH v8 4/4] drivers: net: Add APM X-Gene SoC ethernet driver support.

[Mark Salter]

On Tue, 2014-06-24 at 22:29 -0600, Dann Frazier wrote:
> On Fri, Jun 20, 2014 at 5:18 PM, Iyappan Subramanian
> > +       ring->desc_addr = dma_zalloc_coherent(dev, size, &ring->dma,
> > +                                             GFP_KERNEL);
> 
> Iyappan,
> When testing this driver on a 3.16-rc2 base, I'm finding that
> desc_addr gets assigned to NULL here, which results in an oops later
> on (see below).
> 
> I wasn't seeing this before (3.15 base), so I'm guessing something
> changed upstream, or in my config, to change this behavior. But it
> does illuminate a place where we could maybe use some better error
> handling (also see below).

https://lkml.org/lkml/2014/6/23/10


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