Fix NPE

Bug: 7441452

src/com/android/launcher2/Launcher.java

@@ -1403,6 +1403,10 @@ public final class Launcher extends Activity
 
             Runnable processIntent = new Runnable() {
                 public void run() {
+                    if (mWorkspace == null) {
+                        // Can be cases where mWorkspace is null, this prevents a NPE
+                        return;
+                    }
                     Folder openFolder = mWorkspace.getOpenFolder();
                     // In all these cases, only animate if we're already on home
                     mWorkspace.exitWidgetResizeMode();