Hi Dejin,

Use the new function pcim_alloc_irq_vectors() to allocate IRQ vectors,
the pcim_alloc_irq_vectors() function, an explicit device-managed version
of pci_alloc_irq_vectors(). If pcim_enable_device() has been called
before, then pci_alloc_irq_vectors() is actually a device-managed
function. It is used here as a device-managed function, So replace it
with pcim_alloc_irq_vectors().

A few suggestions about the commit message in the following reply:

  https://lore.kernel.org/linux-pci/YCwE2cf9X%2FGd6lWy@rocinante/ (local)

Krzysztof