[PATCH v1 5/7] tools/ocaml: fix compiler warnings

[Edwin Török <edvin.torok@xxxxxxxxxx>]

Fix compiler warning about:
* unused value
* ambiguous documentation comment
* non-principal type inference (compiler version dependent)

No functional change.

Signed-off-by: Edwin Török <edvin.torok@xxxxxxxxxx>
---
 tools/ocaml/xenstored/connection.ml | 2 +-
 tools/ocaml/xenstored/process.ml    | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/ocaml/xenstored/connection.ml 
b/tools/ocaml/xenstored/connection.ml
index 65f99ea6f2..a94d47cdc2 100644
--- a/tools/ocaml/xenstored/connection.ml
+++ b/tools/ocaml/xenstored/connection.ml
@@ -313,7 +313,7 @@ let is_bad con = match con.dom with None -> false | Some 
dom -> Domain.is_bad_do
 let has_extra_connection_data con =
        let has_in = has_input con || has_partial_input con in
        let has_out = has_output con in
-       let has_socket = con.dom = None in
+       let _has_socket = con.dom = None in
        let has_nondefault_perms = make_perm con.dom <> con.perm in
        has_in || has_out
        (* TODO: what about SIGTERM, should use systemd to store FDS
diff --git a/tools/ocaml/xenstored/process.ml b/tools/ocaml/xenstored/process.ml
index 27790d4a5c..86eed02413 100644
--- a/tools/ocaml/xenstored/process.ml
+++ b/tools/ocaml/xenstored/process.ml
@@ -59,7 +59,7 @@ let split_one_path data con =
 
 let process_watch t cons =
        let oldroot = t.Transaction.oldroot in
-       let newroot = Store.get_root t.store in
+       let newroot = Store.get_root t.Transaction.store in
        let ops = Transaction.get_paths t |> List.rev in
        let do_op_watch op cons =
                let recurse, oldroot, root = match (fst op) with
@@ -491,7 +491,7 @@ let transaction_replay c t doms cons =
                        ignore @@ Connection.end_transaction c tid None
                )
 
-let do_watch con t _domains cons data =
+let do_watch con _t _domains cons data =
        let (node, token) =
                match (split None '\000' data) with
                | [node; token; ""]   -> node, token
@@ -651,6 +651,7 @@ let maybe_ignore_transaction = function
 
 
 let () = Printexc.record_backtrace true
+
 (**
  * Nothrow guarantee.
  *)
-- 
2.34.1