diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 2936ca4..fd216d9 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2244,7 +2244,7 @@
 	ret |= btrfs_start_workers(&fs_info->caching_workers);
 	ret |= btrfs_start_workers(&fs_info->readahead_workers);
 	if (ret) {
-		ret = -ENOMEM;
+		err = -ENOMEM;
 		goto fail_sb_buffer;
 	}