From b99db64f15b21c86ef4e2dea1c92833249a6d427 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 5 Nov 2014 15:26:48 -0600
Subject: [PATCH] rwbuffer, fix compiler error

---
 drivers/rwbuffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rwbuffer.c b/drivers/rwbuffer.c
index 97c466eb3a..a34bd67df6 100644
--- a/drivers/rwbuffer.c
+++ b/drivers/rwbuffer.c
@@ -970,7 +970,7 @@ int rwb_mediaremoved(FAR struct rwbuffer_s *rwb)
 #endif
 
 #ifdef CONFIG_DRVR_READAHEAD
-  if (rhmaxblocks > 0)
+  if (rwb->rhmaxblocks > 0)
     {
       rwb_semtake(&rwb->rhsem);
       rwb_resetrhbuffer(rwb);