Enji Cooper 4937896a10 kvm_close(3): return error instead of blindly returning 0
`error` is the accumulated error from previous close(2) calls.

This bug has been present since the libcall's import from 4.4BSD
Lite (r1573).

MFC after:	1 week
Noticed by:	vangyzen (D10022)
Relnotes:	yes
Sponsored by:	Dell EMC Isilon
2017-03-20 02:47:28 +00:00
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