From eb2cce95bdcb1819a9403794bb7d23a97c8b9f2c Mon Sep 17 00:00:00 2001
From: Philip Heron <phil@sanslogic.co.uk>
Date: Wed, 16 Jun 2010 23:19:04 +0100
Subject: [PATCH] Prevent rtx_wait() returning when txlen is being updated (non
 atomic)

---
 rtty.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rtty.c b/rtty.c
index f490dfd..c6e58da 100644
--- a/rtty.c
+++ b/rtty.c
@@ -69,6 +69,7 @@ void inline rtx_wait()
 {
 	/* Wait for interrupt driven TX to finish */
 	while(txlen > 0);
+	while(txlen > 0);
 }
 
 void rtx_data(uint8_t *data, size_t length)