Don't use error suppression on realpath() + style adjustments
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 583a976..62cfb28 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -967,7 +967,7 @@
 			return FALSE;
 		}
 
-		if (@realpath($this->upload_path) !== FALSE)
+		if (realpath($this->upload_path) !== FALSE)
 		{
 			$this->upload_path = str_replace('\\', '/', realpath($this->upload_path));
 		}