Fix rake code

spec/need_kconfig_format_spec.rb

@@ -4,20 +4,20 @@
 def check_config_name(name)
   # Check if config name format is valid:
   # 1. not start with CONFIG_
-  return !name.to_s.start_with?("CONFIG_")
+  !name.to_s.start_with?('CONFIG_')
 end
 
 def check_config_value(value)
   # Check if value format is valid:
   # 1. only contain n, m, y or nothing
   # 2. only contain i386, x86_64, or nothing
   allowed_chars = /^(n|m|y|i386|x86_64|)$/
-  return value.match?(allowed_chars) || value.empty?
+  value.match?(allowed_chars) || value.empty?
 end
 
 def preprocess_yaml_file(file_path)
   yaml_content = ''
-  
+
   File.open(file_path, 'r') do |file|
     file.each_line do |line|
       # Skip lines containing conditional directives
@@ -32,7 +32,7 @@ def preprocess_yaml_file(file_path)
 
 def load_yaml_with_conditionals(file_path)
   yaml_content = preprocess_yaml_file(file_path)
-  YAML.safe_load(yaml_content)
+  YAML.load(yaml_content)
 end
 
 describe 'Check need_kconfig from' do
@@ -42,25 +42,26 @@ def load_yaml_with_conditionals(file_path)
   files.each do |file|
     begin
       yaml_data = load_yaml_with_conditionals(file)
-      next if yaml_data.nil?
+      next if yaml_data.nil? || !yaml_data.is_a?(Hash)
 
       kconfig_section = yaml_data['need_kconfig']
-      
+
       next if kconfig_section.nil?
 
       it file do
-        if kconfig_section.is_a?(String)
+        case kconfig_section
+        when String
           var_name = kconfig_section
           expect(check_config_name(var_name)).to be_truthy
-        elsif kconfig_section.is_a?(Array)
+        when Array
           kconfig_section.each do |config|
-            var_name, var_val = config.is_a?(String) ? [config.split(':').map(&:strip)[0], ""] : [config.keys[0], config.values[0]]
+            var_name, var_val = config.is_a?(String) ? [config.split(':').map(&:strip)[0], ''] : [config.keys[0], config.values[0]]
             conditions = check_config_name(var_name) && check_config_value(var_val)
             expect(conditions).to be_truthy
           end
         end
       end
-    rescue Psych::SyntaxError => e
+    rescue Psych::SyntaxError
       # Expecting need_kconfig will be put in yaml file, so files like include/md/raid_level will be skipped
       next
     end