Check for errors from adb, may not work on all systems.

lib/ansible/module_utils/facts.py

@@ -1257,6 +1257,7 @@ class HPUX(Hardware):
                 #adb output. Unfortunatley /dev/kmem doesn't have world-read, so this only works as root.
                 if os.access("/dev/kmem", os.R_OK):
                     rc, out, err = module.run_command("echo 'phys_mem_pages/D' | adb -k /stand/vmunix /dev/kmem | tail -1 | awk '{print $2}'", use_unsafe_shell=True)
+                    if not err:
                       data = out
                       self.facts['memtotal_mb'] = int(data) / 256
         else: