Fix withings race condition for access token (#69107)

homeassistant/components/withings/common.py

@@ -494,7 +494,7 @@ class ConfigEntryWithingsApi(AbstractWithingsApi):
         """Perform an async request."""
         asyncio.run_coroutine_threadsafe(
             self.session.async_ensure_token_valid(), self._hass.loop
-        )
+        ).result()
 
         access_token = self._config_entry.data["token"]["access_token"]
         response = requests.request(
@@ -648,7 +648,11 @@ class DataManager:
             try:
                 return await func()
             except Exception as exception1:  # pylint: disable=broad-except
-                await asyncio.sleep(0.1)
+                _LOGGER.debug(
+                    "Failed attempt %s of %s (%s)", attempt, attempts, exception1
+                )
+                # Make each backoff pause a little bit longer
+                await asyncio.sleep(0.5 * attempt)
                 exception = exception1
                 continue