Marius Strobl 376a67cf64 - Zero the MSI/MSI-X queue argument, otherwise mtx_init(9) can panic
indicating an already initialized lock.
- Check for an empty MSI/MSI-X queue entry before asserting that we have
  received a MSI/MSI-X message in order to not panic in case of stray MSI/
  MSI-X queue interrupts which may happen in case of using an interrupt
  handler rather than a filter.

MFC after:	3 days
2010-01-27 20:30:14 +00:00
..