X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=apps%2FMViz%2FMVizC.nc;h=82f39986de91ab96cbc999904790bb7f1bf99a75;hb=da0cfeda9689aa64cfce0aa209f51803dcb11c21;hp=6719d8f0fe8ae49fd1322fc9b6a213d7d1f61fd6;hpb=594acbf436f5f78611348f7763a89c84f38ba46a;p=tinyos-2.x.git

diff --git a/apps/MViz/MVizC.nc b/apps/MViz/MVizC.nc
index 6719d8f0..82f39986 100644
--- a/apps/MViz/MVizC.nc
+++ b/apps/MViz/MVizC.nc
@@ -125,8 +125,8 @@ implementation {
   Receive.receive(message_t* msg, void *payload, uint8_t len) {
     if (uartbusy == FALSE) {
       mviz_msg_t* in = (mviz_msg_t*)payload;
-      mviz_msg_t* out = (mviz_msg_t*)call SerialSend.getPayload(&uartbuf);
-      if (len != sizeof(mviz_msg_t)) {
+      mviz_msg_t* out = (mviz_msg_t*)call SerialSend.getPayload(&uartbuf, sizeof(mviz_msg_t));
+      if (out == NULL) {
 	return msg;
       }
       else {
@@ -177,7 +177,11 @@ implementation {
   */
   event void Timer.fired() {
     if (!sendbusy) {
-      mviz_msg_t *o = (mviz_msg_t *)call Send.getPayload(&sendbuf);
+      mviz_msg_t *o = (mviz_msg_t *)call Send.getPayload(&sendbuf, sizeof(mviz_msg_t));
+      if (o == NULL) {
+	fatal_problem();
+	return;
+      }
       memcpy(o, &local, sizeof(local));
       if (call Send.send(&sendbuf, sizeof(local)) == SUCCESS)
 	sendbusy = TRUE;