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Commit b4cfeb60 authored by Dmitri Plotnikov's avatar Dmitri Plotnikov
Browse files

Prevent zero-division when number of TX or RX packets is 0. 

Bug: 386606184
Flag: EXEMPT bugfix
Test: atest PowerStatsTests
Change-Id: I6ca7b9308d85f6256aeb5f554de5be32570cdb28
parent 0fd6b40d

services/core/java/com/android/server/power/stats/BatteryStatsImpl.java

+14 −10
Original line number Diff line number Diff line
@@ -12746,21 +12746,25 @@ public class BatteryStatsImpl extends BatteryStats { 














                // Distribute the remaining Tx power appropriately between all apps that transmitted















                // packets.













                if (totalTxPackets != 0 && leftOverTxTimeMs != 0) {















                    for (int i = 0; i < txPackets.size(); i++) {















                        final int uid = txPackets.keyAt(i);















                        final long myTxTimeMs = (txPackets.valueAt(i) * leftOverTxTimeMs)















                                / totalTxPackets;















                        txTimesMs.incrementValue(uid, myTxTimeMs);















                    }













                }





























                // Distribute the remaining Rx power appropriately between all apps that received















                // packets.













                if (totalRxPackets != 0 && leftOverRxTimeMs != 0) {















                    for (int i = 0; i < rxPackets.size(); i++) {















                        final int uid = rxPackets.keyAt(i);















                        final long myRxTimeMs = (rxPackets.valueAt(i) * leftOverRxTimeMs)















                                / totalRxPackets;















                        rxTimesMs.incrementValue(uid, myRxTimeMs);















                    }













                }





























                for (int i = 0; i < txTimesMs.size(); i++) {















                    final int uid = txTimesMs.keyAt(i);