1 files changed, 4 insertions, 4 deletions
diff --git a/libhwc2.1/histogram_mediator.cpp b/libhwc2.1/histogram_mediator.cpp
index a09f579..d1fba54 100644
--- a/libhwc2.1/histogram_mediator.cpp
+++ b/libhwc2.1/histogram_mediator.cpp
@@ -56,12 +56,12 @@ histogram::HistogramErrorCode histogram::HistogramMediator::requestHist() {
     ExynosDisplayDrmInterface *moduleDisplayInterface =
             static_cast<ExynosDisplayDrmInterface *>(mDisplay->mDisplayInterface.get());
 
-    if (moduleDisplayInterface->setHistogramControl(
-                hidl_histogram_control_t::HISTOGRAM_CONTROL_REQUEST) != NO_ERROR) {
-        return histogram::HistogramErrorCode::ENABLE_HIST_ERROR;
-    }
     {
         std::unique_lock<std::mutex> lk(mIDLHistogram->mDataCollectingMutex);
+        if (moduleDisplayInterface->setHistogramControl(
+                hidl_histogram_control_t::HISTOGRAM_CONTROL_REQUEST) != NO_ERROR) {
+                return histogram::HistogramErrorCode::ENABLE_HIST_ERROR;
+        }
         mIDLHistogram->mHistReq_pending = true;
     }
     return histogram::HistogramErrorCode::NONE;