diff --git a/display/buffer/v1_0/hdi_impl/display_buffer_hdi_impl.h b/display/buffer/v1_0/hdi_impl/display_buffer_hdi_impl.h
index a7db5c20e921175ef6862009fe8d28e5409d42c2..47e5710e6596756387987e9be2e9303643cfc946 100644
--- a/display/buffer/v1_0/hdi_impl/display_buffer_hdi_impl.h
+++ b/display/buffer/v1_0/hdi_impl/display_buffer_hdi_impl.h
@@ -90,14 +90,17 @@ public:
     {
         if (recipient_ != nullptr) {
             sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
-            remoteObj->RemoveDeathRecipient(recipient_);
-            recipient_ = nullptr;
+            if (remoteObj != nullptr) {
+                remoteObj->RemoveDeathRecipient(recipient_);
+                recipient_ = nullptr;
+            }
         }
     }
 
     bool AddDeathRecipient(const sptr<IRemoteObject::DeathRecipient>& recipient) override
     {
         sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
+        CHECK_NULLPOINTER_RETURN_VALUE(remoteObj, false);
         if (recipient_ != nullptr) {
             HDF_LOGE("%{public}s: the existing recipient is removed, and add the new. %{public}d",
                 __func__, __LINE__);
@@ -117,6 +120,7 @@ public:
     {
         if (recipient_ != nullptr) {
             sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
+            CHECK_NULLPOINTER_RETURN_VALUE(remoteObj, false);
             remoteObj->RemoveDeathRecipient(recipient_);
             recipient_ = nullptr;
         }