From 9c2625f0a5f703363680472c059998bd138f7d79 Mon Sep 17 00:00:00 2001
From: cgtobi <cgtobi@users.noreply.github.com>
Date: Tue, 16 Jul 2019 17:16:35 +0200
Subject: [PATCH] Raise not ready when no data from API is retrieved (#25182)

---
 homeassistant/components/opensensemap/air_quality.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/opensensemap/air_quality.py b/homeassistant/components/opensensemap/air_quality.py
index 3f859724fc3..2aa587dc8ae 100644
--- a/homeassistant/components/opensensemap/air_quality.py
+++ b/homeassistant/components/opensensemap/air_quality.py
@@ -7,6 +7,7 @@ import voluptuous as vol
 from homeassistant.components.air_quality import (
     PLATFORM_SCHEMA, AirQualityEntity)
 from homeassistant.const import CONF_NAME
+from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
@@ -40,7 +41,7 @@ async def async_setup_platform(
 
     if 'name' not in osm_api.api.data:
         _LOGGER.error("Station %s is not available", station_id)
-        return
+        raise PlatformNotReady
 
     station_name = osm_api.api.data['name'] if name is None else name