tree 061017bb4203f3fb400fbba57174612b4138e2a8
parent 60d7059af6016016cab2458f7acf2db619f9b669
author Rubin Xu <rubinxu@google.com> 1539097539 +0100
committer Rohit Yengisetty <rngy@google.com> 1539731127 -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 ef35553d530452ad6aa43832c8bc8ff76898181a)