tree 7990953fd080015bda7a8556ea0ce7334cec03b5
parent 70ca4361d6193cbf7ba2f3f1a29ce2cd9acf1256
author Rubin Xu <rubinxu@google.com> 1539098018 +0100
committer Rohit Yengisetty <rngy@google.com> 1539731490 -0700

[DO NOT MERGE] Fix signedness mismatch and integer underflow

persist_get_max_entries() is supposed to return an unsigned integer as the
maximum number of entries but it also wrongly returns "-1" as an error
condition. Also fix an issue where an unsigned subtraction in this routine
could lead to integer underflow.

Bug: 112731440
Test: manual
Change-Id: I9672e39bef2c12156dda7806a08c52044962c178
(cherry picked from commit 19ef1ae99a0138197e43658e84d860d17912a4a0)