tree 1ffeecc0d83c3ec6158bcdbaf8851e716f24f2d7
parent 1d6df8edb5b177bd24d692e1fa854272af394d0a
author jeffhao <jeffhao@google.com> 1357179222 -0800
committer jeffhao <jeffhao@google.com> 1357252836 -0800

Fix stack walking when top frame has null method pointer.

Changed the do-while loop to just a while loop in the stack walk. This
fixes the case where the top frame has a null method pointer, which can
happen during instrumentation.

Change-Id: If7d67cd315d31bac4c1bbe31d6e385612b182935