io/ioutil: don't check for short write in WriteFile

*os.File already does it.

Fixes #33064

Change-Id: I3edf0a31bf6d6e5023f47f01ebc92ed057357278
GitHub-Last-Rev: e6a5ba45d7e74def668adf145f46387ef27f5d28
GitHub-Pull-Request: golang/go#33065
Reviewed-on: https://go-review.googlesource.com/c/go/+/185857
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/io/ioutil/ioutil.go b/src/io/ioutil/ioutil.go
index 674b2701db1c15873a03e4f1c8796c88aac9f439..e617be5dae6350f58ed14e8c05189841aab9691c 100644 (file)
--- a/src/io/ioutil/ioutil.go
+++ b/src/io/ioutil/ioutil.go
@@ -81,10 +81,7 @@ func WriteFile(filename string, data []byte, perm os.FileMode) error {
        if err != nil {
                return err
        }
-       n, err := f.Write(data)
-       if err == nil && n < len(data) {
-               err = io.ErrShortWrite
-       }
+       _, err = f.Write(data)
        if err1 := f.Close(); err == nil {
                err = err1
        }