diff --git a/distributed_camera/hdi_service/src/dstream_operator/dcamera_stream.cpp b/distributed_camera/hdi_service/src/dstream_operator/dcamera_stream.cpp
index 04a4ff689eff7220b7f6681d1a13f4a8b30b3c13..ab48b8a133245cdfee9a6496c35fb4bb4f417707 100644
--- a/distributed_camera/hdi_service/src/dstream_operator/dcamera_stream.cpp
+++ b/distributed_camera/hdi_service/src/dstream_operator/dcamera_stream.cpp
@@ -329,7 +329,7 @@ DCamRetCode DCameraStream::FlushDCameraBuffer()
 
     while (true) {
         std::shared_ptr<DImageBuffer> imageBuffer = dcStreamBufferMgr_->AcquireBuffer();
-        if (imageBuffer == nullptr) {
+        if (imageBuffer != nullptr) {
             auto bufCfg = bufferConfigMap_.find(imageBuffer);
             if (bufCfg == bufferConfigMap_.end()) {
                 DHLOGE("Buffer not in map.");