Fixing leak caused by bug 457864

view/src/nsScrollPortView.cpp

@@ -268,9 +268,11 @@ NS_IMETHODIMP nsScrollPortView::ScrollTo(nscoord aDestinationX, nscoord aDestina
   PRBool isSmoothScroll = (aUpdateFlags & NS_VMREFRESH_SMOOTHSCROLL) &&
                           IsSmoothScrollingEnabled();
 
-  if (mAsyncScroll && mAsyncScroll->mIsSmoothScroll) {
+  if (mAsyncScroll) {
+    if (mAsyncScroll->mIsSmoothScroll) {
       currentVelocityX = mAsyncScroll->mVelocities[mAsyncScroll->mFrameIndex*2];
       currentVelocityY = mAsyncScroll->mVelocities[mAsyncScroll->mFrameIndex*2 + 1];
+    }
   } else {
     mAsyncScroll = new AsyncScroll;
     if (mAsyncScroll) {