K 10 svn:author V 10 nwhitehorn K 8 svn:date V 27 2012-04-12T00:38:34.223246Z K 7 svn:log V 187 MFC r233018: Make ofw_bus_get_node() consistently return -1 when there is no associated OF node, instead of a random mixture of 0 and -1. Update all checks for 0 to check for -1 instead. END