diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 28f3dc2..1389ed6 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -131,7 +131,7 @@
     Mutex::Autolock lock(mMutex);
     int found = INVALID_BUFFER_SLOT;
     for (int i = 0; i < mBufferCount; i++) {
-        if (!mSlots[i].mOwnedByClient && i != mCurrentTexture) {
+        if (!mSlots[i].mOwnedByClient && i != mCurrentTexture && i != mLastQueued) {
             mSlots[i].mOwnedByClient = true;
             found = i;
             break;
diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index f6c55e4..ad9a94f 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -774,6 +774,9 @@
             self->mExitPending = true;
             self->mLock.lock();
             self->mRunning = false;
+            // clear thread ID so that requestExitAndWait() does not exit if
+            // called by a new thread using the same thread ID as this one.
+            self->mThread = thread_id_t(-1);
             self->mThreadExitedCondition.broadcast();
             self->mLock.unlock();
             break;