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Commit 0312c36c authored by Dmitri Plotnikov's avatar Dmitri Plotnikov
Browse files

Prevent zero-division in the absence of measured system server drain 

Bug: 197237752
Test: atest CtsDumpsysHostTestCases:android.dumpsys.cts.BatteryStatsDumpsysTest#testBatterystatsOutput -- --abi arm64-v8a
Change-Id: I18a1b563a066bcabe686a12fd9c93d3838ed0d10
parent 7058a51d

core/java/com/android/internal/os/SystemServicePowerCalculator.java

+5 −2
Original line number Diff line number Diff line
@@ -175,8 +175,11 @@ public class SystemServicePowerCalculator extends PowerCalculator { 
        final double systemUidModeledPowerMah = mCpuPowerCalculator.calculateUidModeledPowerMah(

                systemUid, BatteryStats.STATS_SINCE_CHARGED);



        return uCtoMah(consumptionUC) * systemServiceModeledPowerMah

                / systemUidModeledPowerMah;

        if (systemUidModeledPowerMah > 0) {

            return uCtoMah(consumptionUC) * systemServiceModeledPowerMah / systemUidModeledPowerMah;

        } else {

            return 0;

        }

    }



    private double calculatePowerUsingPowerProfile(BatteryStats batteryStats) {