From abee990d305f858b2102a095a09cc6f27c733642 Mon Sep 17 00:00:00 2001
From: Bailey Ling <bling@live.ca>
Date: Sat, 19 Apr 2014 14:16:36 -0400
Subject: [PATCH] handle cases where the augroup has not be defined yet.
 resolves #492

---
 autoload/airline/extensions/whitespace.vim | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/autoload/airline/extensions/whitespace.vim b/autoload/airline/extensions/whitespace.vim
index 9dd0cd47..f987ec08 100644
--- a/autoload/airline/extensions/whitespace.vim
+++ b/autoload/airline/extensions/whitespace.vim
@@ -62,7 +62,9 @@ endfunction!
 
 function! airline#extensions#whitespace#toggle()
   if s:enabled
-    autocmd! airline_whitespace CursorHold,BufWritePost
+    augroup airline_whitespace
+      autocmd!
+    augroup END
     augroup! airline_whitespace
     let s:enabled = 0
   else