fs: throw errors from fs.fsyncSync in JS

PR-URL: https://github.com/nodejs/node/pull/18348
Refs: https://github.com/nodejs/node/issues/18106
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/fs.js b/lib/fs.js
index 49e550fe3d..e3801d30db 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -1045,7 +1045,11 @@ fs.fsync = function(fd, callback) {
 
 fs.fsyncSync = function(fd) {
   validateUint32(fd, 'fd');
-  return binding.fsync(fd);
+  const ctx = {};
+  binding.fsync(fd, undefined, ctx);
+  if (ctx.errno !== undefined) {
+    throw new errors.uvException(ctx);
+  }
 };
 
 fs.mkdir = function(path, mode, callback) {