Andrew Turner 93b9a2a6f8 Clear the C bit of the saved program state register when also clearing the
return value. We use this bit to signal when a syscall has failed, and
without this getcontext/setcontext may fail.

MFC after:	1 week
2015-06-01 18:13:32 +00:00
..
2015-04-04 23:03:11 +00:00