diff --git a/src/gausskernel/storage/mot/core/src/system/checkpoint/checkpoint_manager.cpp b/src/gausskernel/storage/mot/core/src/system/checkpoint/checkpoint_manager.cpp
index 80c50ae34..cd08a89f4 100644
--- a/src/gausskernel/storage/mot/core/src/system/checkpoint/checkpoint_manager.cpp
+++ b/src/gausskernel/storage/mot/core/src/system/checkpoint/checkpoint_manager.cpp
@@ -927,9 +927,9 @@ bool CheckpointManager::SerializeInProcessTxns(int fd)
                 return RC_ERROR;
             }
             MOT_LOG_DEBUG("SerializeInProcessTxns: wrote seg %p %lu bytes", segment, bufSize);
-            if (buf != nullptr) {
-                free(buf);
-            }
+        }
+        if (buf != nullptr) {
+            free(buf);
         }
         return RC_OK;
     };