From 72753a9ccb0bdda8d3094691dc64fe2a67be2df9 Mon Sep 17 00:00:00 2001
From: Calum Lind <calumlind+deluge@gmail.com>
Date: Mon, 3 Feb 2014 12:23:11 +0000
Subject: [PATCH] Fix common.free_space to handle path is None

---
 deluge/common.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/deluge/common.py b/deluge/common.py
index a53bb802e..c7f912383 100644
--- a/deluge/common.py
+++ b/deluge/common.py
@@ -562,7 +562,7 @@ def free_space(path):
     :raises InvalidPathError: if the path is not valid
 
     """
-    if not os.path.exists(path):
+    if not path or not os.path.exists(path):
         raise InvalidPathError("%s is not a valid path" % path)
 
     if windows_check():