[TD-4081]<fix>: fix vnode confirm forward missing response & write msg freeing

src/vnode/src/vnodeSync.c

@@ -119,7 +119,6 @@ void vnodeConfirmForard(int32_t vgId, void *wparam, int32_t code) {
   void *pVnode = vnodeAcquire(vgId);
   if (pVnode == NULL) {
     vError("vgId:%d, vnode not found while confirm forward", vgId);
-    return;
   }
 
   dnodeSendRpcVWriteRsp(pVnode, wparam, code);

src/vnode/src/vnodeWrite.c

@@ -317,12 +317,13 @@ int32_t vnodeWriteToWQueue(void *vparam, void *wparam, int32_t qtype, void *rpar
 
 void vnodeFreeFromWQueue(void *vparam, SVWriteMsg *pWrite) {
   SVnodeObj *pVnode = vparam;
-
+  if (pVnode) {
     int32_t queued = atomic_sub_fetch_32(&pVnode->queuedWMsg, 1);
     int64_t queuedSize = atomic_sub_fetch_64(&pVnode->queuedWMsgSize, pWrite->pHead.len);
 
     vTrace("vgId:%d, msg:%p, app:%p, free from vwqueue, queued:%d size:%" PRId64, pVnode->vgId, pWrite,
            pWrite->rpcMsg.ahandle, queued, queuedSize);
+  }
 
   taosFreeQitem(pWrite);
   vnodeRelease(pVnode);