func checkError()

in winterm/api.go [306:317]

• 9 lines of code
• 3 McCabe index (conditional complexity)

func checkError(r1, r2 uintptr, err error) error {
	// Windows APIs return non-zero to indicate success
	if r1 != 0 {
		return nil
	}

	// Return the error if provided, otherwise default to EINVAL
	if err != nil {
		return err
	}
	return syscall.EINVAL
}