--- old/src/hotspot/os/aix/os_perf_aix.cpp	2018-07-10 15:42:50.093986989 -0400
+++ new/src/hotspot/os/aix/os_perf_aix.cpp	2018-07-10 15:42:49.873974870 -0400
@@ -893,21 +893,14 @@
 }
 
 int SystemProcessInterface::SystemProcesses::ProcessIterator::next_process() {
-  struct dirent* entry;
-
   if (!is_valid()) {
     return OS_ERR;
   }
 
   do {
-      entry = os::readdir(_dir, _entry);
-    if (entry == NULL) {
-      // error
-      _valid = false;
-      return OS_ERR;
-    }
+    _entry = os::readdir(_dir);
     if (_entry == NULL) {
-      // reached end
+      // Error or reached end.  Could use errno to distinguish those cases.
       _valid = false;
       return OS_ERR;
     }
@@ -929,11 +922,8 @@
 }
 
 SystemProcessInterface::SystemProcesses::ProcessIterator::~ProcessIterator() {
-  if (_entry != NULL) {
-    FREE_C_HEAP_ARRAY(char, _entry);
-  }
   if (_dir != NULL) {
-    closedir(_dir);
+    os::closedir(_dir);
   }
 }