Fix errcheck: error return value of w.closeTempFile is not checked

Signed-off-by: Jan Rodák <[email protected]>

pkg/ioutils/fswriters.go

@@ -150,10 +150,13 @@ func (w *atomicFileWriter) complete(commit bool) (retErr error) {
 	}
 
 	defer func() {
-		w.closeTempFile()
+		err := w.closeTempFile()
 		if retErr != nil || w.writeErr != nil {
 			os.Remove(w.f.Name())
 		}
+		if retErr == nil {
+			retErr = err
+		}
 	}()
 
 	if commit {