diff --git a/services/core/java/com/android/server/display/DisplayDevice.java b/services/core/java/com/android/server/display/DisplayDevice.java
index 311fa7c169583..76d71e2b968ab 100644
--- a/services/core/java/com/android/server/display/DisplayDevice.java
+++ b/services/core/java/com/android/server/display/DisplayDevice.java
@@ -131,7 +131,7 @@ abstract class DisplayDevice {
      * Only used for mirroring started from MediaProjection.
      */
     @Nullable
-    public Point getDisplaySurfaceDefaultSize() {
+    public Point getDisplaySurfaceDefaultSizeLocked() {
         return null;
     }
 
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index e21edc9c44681..e4c12e634a283 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -3880,8 +3880,8 @@ public final class DisplayManagerService extends SystemService {
                 if (device == null) {
                     return null;
                 }
+                return device.getDisplaySurfaceDefaultSizeLocked();
             }
-            return device.getDisplaySurfaceDefaultSize();
         }
 
         @Override
diff --git a/services/core/java/com/android/server/display/VirtualDisplayAdapter.java b/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
index ea313743d28da..dde8831090df6 100644
--- a/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
+++ b/services/core/java/com/android/server/display/VirtualDisplayAdapter.java
@@ -302,7 +302,7 @@ public class VirtualDisplayAdapter extends DisplayAdapter {
         }
 
         @Override
-        public Point getDisplaySurfaceDefaultSize() {
+        public Point getDisplaySurfaceDefaultSizeLocked() {
             if (mSurface == null) {
                 return null;
             }