From 753d22d3f0f9764e9a4cdfbefdcf45ff9db4c3cc Mon Sep 17 00:00:00 2001
From: "R. Steve McKown" <rsmckown@gmail.com>
Date: Wed, 7 Apr 2010 18:17:22 -0600
Subject: [PATCH] Remove redundant atomic blocks.

---
 tos/chips/msp430/usci/Msp430SpiP.nc  | 16 +++++++------
 tos/chips/msp430/usci/Msp430UartP.nc | 34 +++++++++++++---------------
 2 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/tos/chips/msp430/usci/Msp430SpiP.nc b/tos/chips/msp430/usci/Msp430SpiP.nc
index 6d8e9f4c..22bfbbd3 100644
--- a/tos/chips/msp430/usci/Msp430SpiP.nc
+++ b/tos/chips/msp430/usci/Msp430SpiP.nc
@@ -229,13 +229,15 @@ implementation {
 
   async command uint8_t SpiByte.write(uint8_t byte)
   {
-    if (isBusy())
-      return 0;
-    else {
-      waitOnTx();
-      call Registers.setTxbuf(byte);
-      waitOnRx();
-      return call Registers.getRxbuf();
+    atomic {
+      if (isBusy())
+	return 0;
+      else {
+	waitOnTx();
+	call Registers.setTxbuf(byte);
+	waitOnRx();
+	return call Registers.getRxbuf();
+      }
     }
   }
 
diff --git a/tos/chips/msp430/usci/Msp430UartP.nc b/tos/chips/msp430/usci/Msp430UartP.nc
index 1b595bfd..742c1674 100644
--- a/tos/chips/msp430/usci/Msp430UartP.nc
+++ b/tos/chips/msp430/usci/Msp430UartP.nc
@@ -236,25 +236,23 @@ implementation {
 
   async event void Interrupts.rx(uint8_t byte)
   {
-    atomic {
-      if (m_robuf) {
-	/* receive() takes precedence if active */
-	while (m_rlen && call Registers.getIfgRx()) {
-	  *m_rbuf = byte;
-	  if (--m_rlen)
-	    m_rbuf++;
-	}
-	if (m_rlen == 0 && m_robuf) {
-	  if (m_rxie) {
-	    call Registers.clrIeRx();
-	    call Registers.clrIfgRx();
-	  }
-	  m_robuf = 0;
-	  signal UartStream.receiveDone(m_robuf, m_rolen, SUCCESS);
+    if (m_robuf) {
+      /* receive() takes precedence if active */
+      while (m_rlen && call Registers.getIfgRx()) {
+	*m_rbuf = byte;
+	if (--m_rlen)
+	  m_rbuf++;
+      }
+      if (m_rlen == 0 && m_robuf) {
+	if (m_rxie) {
+	  call Registers.clrIeRx();
+	  call Registers.clrIfgRx();
 	}
-      } else
-	signal UartStream.receivedByte(byte);
-    }
+	m_robuf = 0;
+	signal UartStream.receiveDone(m_robuf, m_rolen, SUCCESS);
+      }
+    } else
+      signal UartStream.receivedByte(byte);
   }
 
   default async command const msp430_usci_uart_t* Configure.get()
-- 
2.39.2