X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/eee302a3157296bccf40e9b83f52c2952294a04e..615722f1097cb80e085f959fa2e6cad94a02cf07:/sdk/go/arvados/fs_lookup.go

diff --git a/sdk/go/arvados/fs_lookup.go b/sdk/go/arvados/fs_lookup.go
index 56b5953234..021e8241cf 100644
--- a/sdk/go/arvados/fs_lookup.go
+++ b/sdk/go/arvados/fs_lookup.go
@@ -50,9 +50,11 @@ func (ln *lookupnode) Readdir() ([]os.FileInfo, error) {
 			return nil, err
 		}
 		for _, child := range all {
+			ln.treenode.Lock()
 			_, err = ln.treenode.Child(child.FileInfo().Name(), func(inode) (inode, error) {
 				return child, nil
 			})
+			ln.treenode.Unlock()
 			if err != nil {
 				return nil, err
 			}