[PATCH v4]PPC4xx: Adding PCI(E) MSI support

[Ayman El-Khashab]

On Thu, May 26, 2011 at 03:24:44PM +1000, Benjamin Herrenschmidt wrote:
> 
> Please check the result and send any "fixup" patch that might be
> necessary.
> 
> > +static int ppc4xx_setup_pcieh_hw(struct platform_device *dev,
> > +				 struct resource res, struct ppc4xx_msi *msi)
> > +{
> > +

<snip>

> > +
> > +	msi->msi_dev = of_find_node_by_name(NULL, "ppc4xx-msi");
> > +	if (msi->msi_dev)
> > +		return -ENODEV;

This does not look correct. I guess it should probably read 

if (!msi->msi_dev) .....

Ayman