K 10
svn:author
V 6
marius
K 8
svn:date
V 27
2014-12-27T21:50:47.255494Z
K 7
svn:log
V 511
Improve/fix interrupt allocation/setup/release:
- Simplify MSI allocation to what is actually needed for a single one.
- Release the MSI and the corresponding bus resource as appropriate when
  either the interrupt resource cannot be allocated or setting up the
  interrupt fails.
- Error out when interrupt allocation or setup fails and polling is
  disabled.
- Release the MSI after the corresponding bus resource so the former is
  not leaked on detach.
- Remove a redundant softc member.

MFC after:	3 days

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