Make LooperStatsService ignore invalid sampling interval

System Server crashes with ArithmeticException if sampling
interval is set to 0.

Test: Manual
Bug: 113651685
Change-Id: I632c56fc0cddbf426bb8369269cd4990ceee6e58

1 files changed, 6 insertions, 1 deletions

diff --git a/services/core/java/com/android/server/LooperStatsService.java b/services/core/java/com/android/server/LooperStatsService.java
index 4f0e17055769..96ce6a4ee6a4 100644
--- a/services/core/java/com/android/server/LooperStatsService.java
+++ b/services/core/java/com/android/server/LooperStatsService.java
@@ -129,7 +129,12 @@ public class LooperStatsService extends Binder {
     }
 
     private void setSamplingInterval(int samplingInterval) {
-        mStats.setSamplingInterval(samplingInterval);
+        if (samplingInterval > 0) {
+            mStats.setSamplingInterval(samplingInterval);
+        } else {
+            Slog.w(TAG, "Ignored invalid sampling interval (value must be positive): "
+                    + samplingInterval);
+        }
     }
 
     /**