diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 08382908ba24f8e7e97e0efce7a8c415abbe0fbe..9115425ccbeb5c56d0576df8c32f1a73ad09b5b7 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -1240,7 +1240,7 @@ status_t Surface::lock(
             return err;
         }
         // we're intending to do software rendering from this point
-        setUsage(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
+        setUsage(GRALLOC_USAGE_SW_WRITE_OFTEN);
     }
 
     ANativeWindowBuffer* out;
@@ -1300,7 +1300,7 @@ status_t Surface::lock(
 
         void* vaddr;
         status_t res = backBuffer->lockAsync(
-                GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
+                GRALLOC_USAGE_SW_WRITE_OFTEN,
                 newDirtyRegion.bounds(), &vaddr, fenceFd);
 
         ALOGW_IF(res, "failed locking buffer (handle = %p)",