cloudstack: cs_iso code style and cleanup

lib/ansible/modules/extras/cloud/cloudstack/cs_iso.py

@@ -213,6 +213,7 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
     def register_iso(self):
         iso = self.get_iso()
         if not iso:
+
             args                            = {}
             args['zoneid']                  = self.get_zone('id')
             args['domainid']                = self.get_domain('id')
@@ -220,13 +221,6 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
             args['projectid']               = self.get_project('id')
             args['bootable']                = self.module.params.get('bootable')
             args['ostypeid']                = self.get_os_type('id')
-            if args['bootable'] and not args['ostypeid']:
-                self.module.fail_json(msg="OS type 'os_type' is requried if 'bootable=true'.")
-
-            args['url'] = self.module.params.get('url')
-            if not args['url']:
-                self.module.fail_json(msg="URL is requried.")
-
             args['name']                    = self.module.params.get('name')
             args['displaytext']             = self.module.params.get('name')
             args['checksum']                = self.module.params.get('checksum')
@@ -234,6 +228,13 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
             args['isfeatured']              = self.module.params.get('is_featured')
             args['ispublic']                = self.module.params.get('is_public')
 
+            if args['bootable'] and not args['ostypeid']:
+                self.module.fail_json(msg="OS type 'os_type' is requried if 'bootable=true'.")
+
+            args['url'] = self.module.params.get('url')
+            if not args['url']:
+                self.module.fail_json(msg="URL is requried.")
+
             self.result['changed'] = True
             if not self.module.check_mode:
                 res = self.cs.registerIso(**args)
@@ -243,6 +244,7 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
 
     def get_iso(self):
         if not self.iso:
+
             args                = {}
             args['isready']     = self.module.params.get('is_ready')
             args['isofilter']   = self.module.params.get('iso_filter')
@@ -272,10 +274,12 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
         iso = self.get_iso()
         if iso:
             self.result['changed'] = True
+
             args                = {}
             args['id']          = iso['id']
             args['projectid']   = self.get_project('id')
             args['zoneid']      = self.get_zone('id')
+
             if not self.module.check_mode:
                 res = self.cs.deleteIso(**args)
         return iso
@@ -309,7 +313,7 @@ class AnsibleCloudStackIso(AnsibleCloudStack):
 def main():
     module = AnsibleModule(
         argument_spec = dict(
-            name = dict(required=True, default=None),
+            name = dict(required=True),
             url = dict(default=None),
             os_type = dict(default=None),
             zone = dict(default=None),