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handle zero-length edge case

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Frank
2026-01-12 19:31:53 +01:00
parent 9cdbc7ad3c
commit 58281b4cd5
1 changed files with 2 additions and 1 deletions
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wled00/bus_manager.cpp
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@@ -1297,7 +1297,8 @@ int BusManager::add(BusConfig &bc) {
if (newBus == nullptr) return numBusses; // WLEDMM early exit if bus creation failed if (newBus == nullptr) return numBusses; // WLEDMM early exit if bus creation failed
unsigned newStart = newBus->getStart(); unsigned newStart = newBus->getStart();
unsigned newEnd = newStart + max(newBus->getLength() - 1, 0); // "max" needed for single-pixel busses unsigned newLen = newBus->getLength();
unsigned newEnd = (newLen > 0) ? newStart + newLen - 1 : newStart; // handle zero-length edge case (only happens when bus could not initialize)
// WLEDMM check if added bus overlaps with any existing bus // WLEDMM check if added bus overlaps with any existing bus
bool foundOverlap = false; bool foundOverlap = false;
unsigned busCount = getNumBusses(); unsigned busCount = getNumBusses();