commit 43948567dd89d666869bd10a162fef0e135aea3a
author Nagendra Prasad Nagarle Basavaraju <nagendranb@google.com> Sun Mar 26 08:00:05 2023 +0000
committer Nagendra Prasad Nagarle Basavaraju <nagendranb@google.com> Wed Mar 29 05:09:53 2023 +0000
tree ea15c9cd78c47b5634650791e6719ef3111e037f
parent 7f59b0cf900b844d2c50d395e5c30a9ced0d71a7

[Telephony_Stability]Fix ArithmeticException at LinkBandwidthEstimator

Divide by zero exception found at calculateErrorPercent().

Bug: 275185931
Test: build & atest
Change-Id: I657e674cec3b5fa45e787b21a18ceeffcbb36e34

src/java/com/android/internal/telephony/data/LinkBandwidthEstimator.java

diff --git a/src/java/com/android/internal/telephony/data/LinkBandwidthEstimator.java b/src/java/com/android/internal/telephony/data/LinkBandwidthEstimator.java
index c04698b..5ed12aa 100644
--- a/src/java/com/android/internal/telephony/data/LinkBandwidthEstimator.java
+++ b/src/java/com/android/internal/telephony/data/LinkBandwidthEstimator.java
@@ -678,7 +678,7 @@
                 return;
             }
             int linkBandwidthKbps = (int) linkBandwidthLongKbps;
-            mBwSampleValid = true;
+            mBwSampleValid = linkBandwidthKbps > 0;
             mBwSampleKbps = linkBandwidthKbps;
 
             String dataRatName = getDataRatName(mDataRat);