diff --git a/lib/config/config.c b/lib/config/config.c
index 2bb55daeb..5986e64b1 100644
--- a/lib/config/config.c
+++ b/lib/config/config.c
@@ -540,9 +540,6 @@ int config_file_read_fd(struct dm_config_tree *cft, struct device *dev, dev_io_r
 				log_sys_error("read", dev_name(dev));
 				goto out;
 			}
-
-			if (!sz)
-				goto out;
 		}
 	} else {
 		if (!dev_read_bytes(dev, offset, size, buf))