check to avoid division by 0

project-chip · Aug 1, 2023 · 5ea215d · 5ea215d
1 parent c6f68f2
commit 5ea215d
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/app/ReadHandler.cpp b/src/app/ReadHandler.cpp
@@ -727,6 +727,12 @@ CHIP_ERROR ReadHandler::ProcessSubscribeRequest(System::PacketBufferHandle && aP
 
     // GetPublisherSelectedIntervalLimit() returns the IdleModeInterval if the device is an ICD
     uint32_t decidedMaxInterval = GetPublisherSelectedIntervalLimit();
+
+    // Check if the PublisherSelectedIntervalLimit is 0. If so, set decidedMaxInterval to MaxIntervalCeiling
+    if(decidedMaxInterval == 0)
+    {
+        decidedMaxInterval = mMaxInterval;
+    }
 
     // If requestedMinInterval is greater than the IdleTimeInterval, select next active up time as max interval
     if (mMinIntervalFloorSeconds > decidedMaxInterval)