From: gnawali <gnawali>
Date: Sat, 19 Sep 2009 13:24:39 +0000 (+0000)
Subject: fix to bug reported by Greg Hackmann - multiplication on TelosB
X-Git-Tag: rc_6_tinyos_2_1_1~230
X-Git-Url: https://oss.titaniummirror.com/gitweb/?p=tinyos-2.x.git;a=commitdiff_plain;h=f9cb0ca0c395efa4ed83b340ea6731faa7622c2e

fix to bug reported by Greg Hackmann - multiplication on TelosB
---

diff --git a/tos/lib/net/4bitle/LinkEstimatorP.nc b/tos/lib/net/4bitle/LinkEstimatorP.nc
index 130d6415..fab06407 100644
--- a/tos/lib/net/4bitle/LinkEstimatorP.nc
+++ b/tos/lib/net/4bitle/LinkEstimatorP.nc
@@ -335,7 +335,7 @@ implementation {
 	  if (totalPkt == 0) {
 	    ne->inquality = (ALPHA * ne->inquality) / 10;
 	  } else {
-	    newEst = (255 * ne->rcvcnt) / totalPkt;
+	    newEst = (255UL * ne->rcvcnt) / totalPkt;
 	    dbg("LI,LITest", "  %hu: %hhu -> %hhu", ne->ll_addr, ne->inquality, (ALPHA * ne->inquality + (10-ALPHA) * newEst + 5)/10);
 	    ne->inquality = (ALPHA * ne->inquality + (10-ALPHA) * newEst + 5)/10;
 	  }