Surface: Initialize variable and add a defensive check

[android-x86/frameworks-native.git] / libs / gui / Surface.cpp

diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 9d57d2d..de41b13 100644 (file)
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -126,9 +126,12 @@ int Surface::hook_queueBuffer(ANativeWindow* window,
 int Surface::hook_dequeueBuffer_DEPRECATED(ANativeWindow* window,
         ANativeWindowBuffer** buffer) {
     Surface* c = getSelf(window);
-    ANativeWindowBuffer* buf;
+    ANativeWindowBuffer* buf = NULL;
     int fenceFd = -1;
     int result = c->dequeueBuffer(&buf, &fenceFd);
+
+    if (result != NO_ERROR) return result;
+
     sp<Fence> fence(new Fence(fenceFd));
     int waitResult = fence->waitForever("dequeueBuffer_DEPRECATED");
     if (waitResult != OK) {