gclient would crash when .gclient is not found.

gclient_utils.py

Index: gclient_utils.py
diff --git a/gclient_utils.py b/gclient_utils.py
index 637b9959df04a78dfbbf106d690a1ad3298142ef..0dcef9df0985745d03109a4f7c4640641ad8c62c 100644
--- a/gclient_utils.py
+++ b/gclient_utils.py
@@ -452,12 +452,11 @@ def FindFileUpwards(filename, path=None):
 def GetGClientRootAndEntries(path=None):
   """Returns the gclient root and the dict of entries."""
   config_file = '.gclient_entries'
-  config_path = os.path.join(FindFileUpwards(config_file, path), config_file)
-
-  if not config_path:
+  root = FindFileUpwards(config_file, path)
+  if not root:
     print "Can't find %s" % config_file
     return None
-
+  config_path = os.path.join(root, config_file)
   env = {}
   execfile(config_path, env)
   config_dir = os.path.dirname(config_path)