releasetools: Fix the bug in AssertSequenceGood.
We use a bitset for blocks in the target image to assert a block hasn't
been touched before reading. Skip checking the blocks that are in the
source image only.
Change-Id: I3a77292da673c813bd20d8dc177ff36419d8ecae
diff --git a/tools/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 25d2743..625dca2 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -771,7 +771,10 @@
x = x.subtract(sr)
for s, e in x:
- for i in range(s, e):
+ # Source image could be larger. Don't check the blocks that are in the
+ # source image only. Since they are not in 'touched', and won't ever
+ # be touched.
+ for i in range(s, min(e, self.tgt.total_blocks)):
assert touched[i] == 0
# Check that the output blocks for this transfer haven't yet
