K 10 svn:author V 5 markj K 8 svn:date V 27 2014-08-04T18:52:26.161273Z K 7 svn:log V 217 Preserve the errno value of an ioctl before calling free(3). Previously, errno was very occasionally being clobbered, resulting in a bogus error from dt_consume() and thus an error from dtrace(1). MFC after: 2 weeks END