syscall: Revert "release a js.Func object in fsCall"

This reverts CL 217417 (commit 753d56d3642eb83848aa39e65982a9fc77e722d7).

This change was unintentionally submitted to master during the
Go 1.14 code freeze; it should be sent again for Go 1.15.

Change-Id: Ie790342f227ae3adfc5f9a90ce3abdc2c9be619b
Reviewed-on: https://go-review.googlesource.com/c/go/+/217721
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>

diff --git a/src/syscall/fs_js.go b/src/syscall/fs_js.go
index c1cac97d91b25578a6c22928693f7ef519c55ff5..16d9f58b8c4a48789ea3392107f391274a43885e 100644 (file)
--- a/src/syscall/fs_js.go
+++ b/src/syscall/fs_js.go
@@ -495,7 +495,7 @@ func fsCall(name string, args ...interface{}) (js.Value, error) {
        }
 
        c := make(chan callResult, 1)
-       f := js.FuncOf(func(this js.Value, args []js.Value) interface{} {
+       jsFS.Call(name, append(args, js.FuncOf(func(this js.Value, args []js.Value) interface{} {
                var res callResult
 
                if len(args) >= 1 { // on Node.js 8, fs.utimes calls the callback without any arguments
@@ -511,9 +511,7 @@ func fsCall(name string, args ...interface{}) (js.Value, error) {
 
                c <- res
                return nil
-       })
-       defer f.Release()
-       jsFS.Call(name, append(args, f)...)
+       }))...)
        res := <-c
        return res.val, res.err
 }