*** empty log message ***

[tinyos-2.x.git] / tos / lib / net / dhv / DhvHSumP.nc

diff --git a/tos/lib/net/dhv/DhvHSumP.nc b/tos/lib/net/dhv/DhvHSumP.nc
index 451f4423a483058341069b328274afe959d58fa7..e550f610906d74de3b50ef0fe7ddcf834325e279 100755 (executable)
--- 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;