From faaa3654d1fbbcc73554a53bb11f0169853a94df Mon Sep 17 00:00:00 2001
From: Jim Miller <jaggies@google.com>
Date: Tue, 15 Oct 2013 13:46:51 -0700
Subject: [PATCH] Fix possible crash in System UI

Fixes bug 11215581

Change-Id: Ic76ad783729316539e8e57feb098d6e823b4ecdf
---
 packages/Keyguard/src/com/android/keyguard/PagedView.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/Keyguard/src/com/android/keyguard/PagedView.java b/packages/Keyguard/src/com/android/keyguard/PagedView.java
index 23488d44a6e30..9d31ab00c7c56 100644
--- a/packages/Keyguard/src/com/android/keyguard/PagedView.java
+++ b/packages/Keyguard/src/com/android/keyguard/PagedView.java
@@ -1553,6 +1553,9 @@ public abstract class PagedView extends ViewGroup implements ViewGroup.OnHierarc
             if (mTouchState == TOUCH_STATE_SCROLLING) {
                 final int activePointerId = mActivePointerId;
                 final int pointerIndex = ev.findPointerIndex(activePointerId);
+
+                if (pointerIndex == -1) return true;
+
                 final float x = ev.getX(pointerIndex);
                 final VelocityTracker velocityTracker = mVelocityTracker;
                 velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);