From 7542749c8e3ad47bb6995ba87be8810101418b0b Mon Sep 17 00:00:00 2001
From: xuanthanh18 <xuanthanh18>
Date: Wed, 21 Oct 2009 06:09:44 +0000
Subject: [PATCH] *** empty log message ***

---
 tos/lib/net/dhv/DhvHSumP.nc    | 3 +++
 tos/lib/net/dhv/DhvSummaryP.nc | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/tos/lib/net/dhv/DhvHSumP.nc b/tos/lib/net/dhv/DhvHSumP.nc
index 451f4423..e550f610 100755
--- a/tos/lib/net/dhv/DhvHSumP.nc
+++ b/tos/lib/net/dhv/DhvHSumP.nc
@@ -37,6 +37,9 @@ implementation{
     error_t sendResult;
 
     dmsg = call HSumSend.getPayloadPtr();
+    if(dmsg == NULL)
+        return FAIL;
+
     dmsg->type = ID_DHV_HSUM;
     dhsmsg = (dhv_hsum_msg_t*) dmsg->content;
 
diff --git a/tos/lib/net/dhv/DhvSummaryP.nc b/tos/lib/net/dhv/DhvSummaryP.nc
index 0902f13a..eb97dd40 100755
--- a/tos/lib/net/dhv/DhvSummaryP.nc
+++ b/tos/lib/net/dhv/DhvSummaryP.nc
@@ -42,6 +42,9 @@ implementation {
     dhv_summary_msg_t* dsmsg;
 
     dmsg = (dhv_msg_t*) call SummarySend.getPayloadPtr();
+    if(dmsg == NULL)
+        return FAIL;
+
     dmsg->type = ID_DHV_SUMMARY;
     dsmsg = (dhv_summary_msg_t*) dmsg->content;
 
-- 
2.39.2