From 8f03b47432f007b1fb3438608361ebf4e3a1310b Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Thu, 10 Dec 2009 15:52:29 -0800
Subject: [PATCH] fix [2319255] crash in openGL : from the media recorder
 stress test.

never call eglCreateImageKHR() with a NULL native buffer, which can
happen in OOM conditions.
---
 libs/surfaceflinger/Layer.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/libs/surfaceflinger/Layer.cpp b/libs/surfaceflinger/Layer.cpp
index f11bf1846..b12c749f2 100644
--- a/libs/surfaceflinger/Layer.cpp
+++ b/libs/surfaceflinger/Layer.cpp
@@ -134,7 +134,14 @@ void Layer::reloadTexture(const Region& dirty)
 {
     Mutex::Autolock _l(mLock);
     sp<GraphicBuffer> buffer(getFrontBufferLocked());
-    int index = mFrontBufferIndex;
+    if (buffer == NULL) {
+        // this situation can happen if we ran out of memory for instance.
+        // not much we can do. continue to use whatever texture was bound
+        // to this context.
+        return;
+    }
+
+    const int index = mFrontBufferIndex;
 
     // create the new texture name if needed
     if (UNLIKELY(mTextures[index].name == -1U)) {