From 94b638d848a62312a9cd6722779965d211565d3c Mon Sep 17 00:00:00 2001
From: px4dev <px4@purgatory.org>
Date: Thu, 4 Jul 2013 23:19:24 -0700
Subject: [PATCH] One more piece of paranoia when resetting DMA

---
 src/modules/px4iofirmware/serial.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/modules/px4iofirmware/serial.c b/src/modules/px4iofirmware/serial.c
index b51ff87d3e..93cff26c26 100644
--- a/src/modules/px4iofirmware/serial.c
+++ b/src/modules/px4iofirmware/serial.c
@@ -286,7 +286,9 @@ static void
 dma_reset(void)
 {
 	rCR3 &= ~(USART_CR3_DMAT | USART_CR3_DMAR);
-
+	(void)rSR;
+	(void)rDR;
+	(void)rDR;
 
 	/* kill any pending DMA */
 	stm32_dmastop(tx_dma);