From 109555753fc1a2adc44d94108509fbe2a2854584 Mon Sep 17 00:00:00 2001
From: Tao Bao <tbao@google.com>
Date: Tue, 23 Jun 2015 17:30:35 -0700
Subject: [PATCH] Fix the error in sparse_img.py

Bug: 22046423
Change-Id: I0796e14df2b523570f0c485d146273f5e5aa5494
(cherry picked from commit 2b4ff174ff09d3d4f69897c8f8004c57836975b4)
---
 tools/releasetools/sparse_img.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/releasetools/sparse_img.py b/tools/releasetools/sparse_img.py
index 51a1643be8..49b3a67001 100644
--- a/tools/releasetools/sparse_img.py
+++ b/tools/releasetools/sparse_img.py
@@ -125,7 +125,7 @@ class SparseImage(object):
     clobbered_blocks."""
     ranges = self.care_map
     if not include_clobbered_blocks:
-      ranges.subtract(self.clobbered_blocks)
+      ranges = ranges.subtract(self.clobbered_blocks)
     h = sha1()
     for d in self._GetRangeData(ranges):
       h.update(d)