Check if attribute handle supports emit before calling

Origin: noble#369 Change-Id: Icdc68c129ab7b165f5b30e15812e9d7316346146
abandonware · Apr 15, 2021 · e3b21df · e3b21df
1 parent bfb33fe
commit e3b21df
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lib/hci-socket/gatt.js b/lib/hci-socket/gatt.js
@@ -911,7 +911,9 @@ Gatt.prototype.handleWriteRequestOrCommand = function(request) {
               handleAttribute.emit('subscribe', this._mtu - 3, updateValueCallback);
             }
           } else {
-            handleAttribute.emit('unsubscribe');
+            if (handleAttribute.emit) {
+              handleAttribute.emit('unsubscribe');
+            }
           }
 
           result = ATT_ECODE_SUCCESS;