Update: modified return bool value on comment
diff --git a/system/core/Input.php b/system/core/Input.php
index 2b36ea3..1e37b11 100755
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -369,7 +369,7 @@
*
* @access public
* @param string
- * @return string
+ * @return bool
*/
public function valid_ip($ip)
{
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index a34809e..c78583f 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1079,7 +1079,7 @@
*
* @access public
* @param string
- * @return string
+ * @return bool
*/
public function valid_ip($ip)
{