Additional handling for 404

- sometimes 404 is acceptable

collection/plugins/modules/device.py

@@ -120,7 +120,8 @@ def get_key_from_filesystem(module):
                              "the API key manually.")
 
 # Fetch Syncthing configuration
-def remote_config(module, method='GET', config=None, result=None, device=None):
+def remote_config(module, method='GET', config=None, result=None, device=None,
+                  missing_ok=False):
     unix_socket = None
     if 'unix_socket' in module.params:
         unix_socket = module.params['unix_socket']
@@ -140,23 +141,32 @@ def remote_config(module, method='GET', config=None, result=None, device=None):
                            module, url=url, unix_socket=unix_socket,
                            data=data, headers=headers,
                            method=method, timeout=module.params['timeout'])
-
-    if not info or info['status'] != 200:
+    if info:
         result['response'] = info
+    else:
         module.fail_json(msg='Error occured while calling host', **result)
 
+    if info['status'] not in [200, 404]:
+        module.fail_json(msg='Error occured while calling host', **result)
+
+    if info['status'] == 404:
+        if missing_ok:
+            return {}
+        else:
+            module.fail_json(msg='Error occured while calling host', **result)
+
     try:
         content = resp.read()
-    except AttributeError:
+        return json.loads(content)
+    except (AttributeError, json.decoder.JSONDecodeError):
         result['content'] = info.pop('body', '')
-        result['response'] = str(info)
         module.fail_json(msg='Error occured while reading response', **result)
 
-    return json.loads(content)
+    return {}  # not reachable but prevents linter complaints
 
 
 def get_device(module, device=None):
-    return remote_config(module, device=device)
+    return remote_config(module, missing_ok=True, device=device)
 def delete_device(module, device, result=None):
     return remote_config(module, method='DELETE', device=device, result=result)