datapath-windows: Handle memory allocation failure for event creation

Release the lock and return if an event entry fails to get allocated.

Signed-off-by: Sairam Venugopal <vsairam@vmware.com>
Acked-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>

diff --git a/datapath-windows/ovsext/Event.c b/datapath-windows/ovsext/Event.c
index abf8f0d42bcf9bf065d8c2dd1ec4cbef7c5cb156..f9bea7f51fbc14c356ebe6ad787d7d1fa09ff143 100644 (file)
--- a/datapath-windows/ovsext/Event.c
+++ b/datapath-windows/ovsext/Event.c
@@ -134,6 +134,13 @@ OvsPostEvent(POVS_EVENT_ENTRY event)
 
         elem = (POVS_EVENT_QUEUE_ELEM)OvsAllocateMemoryWithTag(
             sizeof(*elem), OVS_EVENT_POOL_TAG);
+
+        if (elem == NULL) {
+            OVS_LOG_WARN("Fail to allocate memory for event");
+            OvsReleaseEventQueueLock();
+            return;
+        }
+
         RtlCopyMemory(&elem->event, event, sizeof elem->event);
         InsertTailList(&queue->elemList, &elem->link);
         queue->numElems++;