Hi Dejin,

Thank you again for all the work here!

Add pcim_alloc_irq_vectors(), a device-managed version of
pci_alloc_irq_vectors(). introducing this function can simplify
the error handling path in many drivers.

The second sentence should most likely start with a capital letter.

Having said that, people might ask - how does it simplify the error
handling path?

You might have to back this with a line of two to explain how does the
change achieved that, so that when someone looks at the commit message
it would be clear what the benefits of the change were.

Reviewed-by: Krzysztof Wilczyński <redacted>

Krzysztof