diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index 98831b3..9f1e714 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -431,11 +431,11 @@
     return NO_ERROR;
 }
 
-status_t HWComposer::prepare(DisplayDevice& displayDevice) {
+status_t HWComposer::prepare(DisplayDevice& display) {
     ATRACE_CALL();
 
     Mutex::Autolock _l(mDisplayLock);
-    auto displayId = displayDevice.getHwcDisplayId();
+    auto displayId = display.getHwcDisplayId();
     if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
         ALOGV("Skipping HWComposer prepare for non-HWC display");
         return NO_ERROR;
@@ -502,7 +502,7 @@
 
     displayData.hasClientComposition = false;
     displayData.hasDeviceComposition = false;
-    for (auto& layer : displayDevice.getVisibleLayersSortedByZ()) {
+    for (auto& layer : display.getVisibleLayersSortedByZ()) {
         auto hwcLayer = layer->getHwcLayer(displayId);
 
         if (changedTypes.count(hwcLayer) != 0) {
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index c0bf198..9e4a683 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -92,7 +92,7 @@
     void destroyLayer(int32_t displayId, HWC2::Layer* layer);
 
     // Asks the HAL what it can do
-    status_t prepare(DisplayDevice& displayDevice);
+    status_t prepare(DisplayDevice& display);
 
     status_t setClientTarget(int32_t displayId, uint32_t slot,
             const sp<Fence>& acquireFence,