NAME
piix_check_450nx_errata - Check for problem 450NX setup
SYNOPSIS
int piix_check_450nx_errata(struct pci_dev * ata_dev);
ARGUMENTS
ata_dev
the PCI device to check
DESCRIPTION
Check for the present of 450NX errata #19 and errata #25. If they are found return an error code so we can turn off DMA
AUTHOR
Jeff Garzik
Author.