Prevent spurious lockup if no PCI device available
Prevents lockup in module initialisation if the PCI_FindByClass swi returns 0 rather than an error when hunting for an OCHIDriver device. Brings this in line with EHCIDriver and others.
Prevents lockup in module initialisation if the PCI_FindByClass swi returns 0 rather than an error when hunting for an OCHIDriver device. Brings this in line with EHCIDriver and others.