__set_errno returns -1 exactly so that callers don't need to bother. The other architectures were already taking advantage of this, but no one had ever fixed x86 and x86_64. Change-Id: Ie131494be664f6c4a1bbf8c61bbbed58eac56122
Bug: 11156955 Change-Id: I50842279cb5b32ec8bd45193435574e415cd806e