[PATCH v2] PPC4xx: Adding PCI(E) MSI support

[Tirumala Marri]

>+      msi_mask = of_get_property(dev->dev.of_node, "msi-mask", NULL);
> >+      if (!msi_mask) {
> >+              err = -1;
> >+              goto error_out;
> >+      }
>
> This will return non zero value to probe function which would call
ppc4xx_msi_remove() function. In the ppc4xx_msi_remove() function  there is
iounamp() fuction.
Thanks,
Marri
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