1 files changed, 2 insertions, 1 deletions
diff --git a/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java b/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java
index 61ee8eb71..5375c2598 100644
--- a/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java
+++ b/src/com/android/gallery3d/filtershow/pipeline/UpdatePreviewTask.java
@@ -57,7 +57,8 @@ public class UpdatePreviewTask extends ProcessingTask {
         SharedBuffer buffer = MasterImage.getImage().getPreviewBuffer();
         SharedPreset preset = MasterImage.getImage().getPreviewPreset();
         ImagePreset renderingPreset = preset.dequeuePreset();
-        if (renderingPreset != null) {
+        if ( (buffer != null) && (renderingPreset != null) &&
+                (buffer.getProducer() != null)) {
             mPreviewPipeline.compute(buffer, renderingPreset, 0);
             // set the preset we used in the buffer for later inspection UI-side
             buffer.getProducer().setPreset(renderingPreset);