Merge pull request #785 from srvg/bug/openiscsi-emptylist

open_iscsi: return devicenodes as empty list if no LUN's

system/open_iscsi.py

@@ -108,6 +108,7 @@ import time
 
 ISCSIADM = 'iscsiadm'
 
+
 def compare_nodelists(l1, l2):
 
     l1.sort()
@@ -206,18 +207,15 @@ def target_device_node(module, target):
     # a given target...
 
     devices = glob.glob('/dev/disk/by-path/*%s*' % target)
-    if len(devices) == 0:
-        return None
-    else:
-        devdisks = []
-        for dev in devices:
-            # exclude partitions
-            if "-part" not in dev:
-                devdisk = os.path.realpath(dev)
-                # only add once (multi-path?)
-                if devdisk not in devdisks:
-                    devdisks.append(devdisk)
-        return devdisks
+    devdisks = []
+    for dev in devices:
+        # exclude partitions
+        if "-part" not in dev:
+            devdisk = os.path.realpath(dev)
+            # only add once (multi-path?)
+            if devdisk not in devdisks:
+                devdisks.append(devdisk)
+    return devdisks
 
 
 def target_isauto(module, target):
@@ -333,17 +331,17 @@ def main():
         result['nodes'] = nodes
 
     if login is not None:
-        loggedon = target_loggedon(module,target)
+        loggedon = target_loggedon(module, target)
         if (login and loggedon) or (not login and not loggedon):
             result['changed'] |= False
             if login:
-                result['devicenodes'] = target_device_node(module,target)
+                result['devicenodes'] = target_device_node(module, target)
         elif not check:
             if login:
                 target_login(module, target)
                 # give udev some time
                 time.sleep(1)
-                result['devicenodes'] = target_device_node(module,target)
+                result['devicenodes'] = target_device_node(module, target)
             else:
                 target_logout(module, target)
             result['changed'] |= True
@@ -371,7 +369,6 @@ def main():
     module.exit_json(**result)
 
 
-
 # import module snippets
 from ansible.module_utils.basic import *