Hi Dejin,

Use the correct name of device-managed function to alloc irq vectors,
the pcim_alloc_irq_vectors() function, a explicit device-managed version
of pci_alloc_irq_vectors().

[...]

It would be "IRQ" in the sentence above.

Perhaps the "Use the new function pcim_alloc_irq_vectors() to allocate
IRQ vectors ..." would read a little better - generally, the above
sentence could be improved.  You might also want to add a more details
about why to use this new function instead of the previous one, etc.

Krzysztof