Merge pull request #8 from arutk/fix-stop-error-handling

Abort cache deinit in case of ocf stop fatal error

modules/cas_cache/layer_cache_management.c

@@ -1559,6 +1559,8 @@ int cache_mng_exit_instance(ocf_cache_id_t id, int flush)
 
 	/* Stop cache device */
 	status = _cache_mng_cache_stop_sync(cache);
+	if (status && status != -OCF_ERR_WRITE_CACHE)
+		goto unlock;
 
 	if (!status && flush_status)
 		status = -KCAS_ERR_STOPPED_DIRTY;