diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index b8acad2..04d8a08 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -267,6 +267,9 @@
     Mutex::Autolock lock(mMutex);
     int i = getSlotFromBufferLocked(buffer);
     if (i < 0) {
+        if (fenceFd >= 0) {
+            close(fenceFd);
+        }
         return i;
     }
     sp<Fence> fence(fenceFd >= 0 ? new Fence(fenceFd) : Fence::NO_FENCE);
@@ -308,6 +311,9 @@
     }
     int i = getSlotFromBufferLocked(buffer);
     if (i < 0) {
+        if (fenceFd >= 0) {
+            close(fenceFd);
+        }
         return i;
     }