From 0eece9f2e5ce660a63e713dffb88ce2764fc8421 Mon Sep 17 00:00:00 2001
From: huyx <huyuxiang8@h-partners.com>
Date: Thu, 10 Jul 2025 11:44:50 +0800
Subject: [PATCH] =?UTF-8?q?codecheck=E5=A4=84=E7=90=86?=
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Signed-off-by: huyx <huyuxiang8@h-partners.com>
---
 display/buffer/v1_0/hdi_impl/display_buffer_hdi_impl.h | 3 +++
 1 file changed, 3 insertions(+)

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 a7db5c20..e79364a0 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
@@ -90,6 +90,7 @@ public:
     {
         if (recipient_ != nullptr) {
             sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
+            CHECK_NULLPOINTER_RETURN_VALUE(remoteObj, HDF_FAILURE);
             remoteObj->RemoveDeathRecipient(recipient_);
             recipient_ = nullptr;
         }
@@ -98,6 +99,7 @@ public:
     bool AddDeathRecipient(const sptr<IRemoteObject::DeathRecipient>& recipient) override
     {
         sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
+        CHECK_NULLPOINTER_RETURN_VALUE(remoteObj, HDF_FAILURE);
         if (recipient_ != nullptr) {
             HDF_LOGE("%{public}s: the existing recipient is removed, and add the new. %{public}d",
                 __func__, __LINE__);
@@ -117,6 +119,7 @@ public:
     {
         if (recipient_ != nullptr) {
             sptr<IRemoteObject> remoteObj = OHOS::HDI::hdi_objcast<IAllocator>(allocator_);
+            CHECK_NULLPOINTER_RETURN_VALUE(remoteObj, HDF_FAILURE);
             remoteObj->RemoveDeathRecipient(recipient_);
             recipient_ = nullptr;
         }
-- 
Gitee