tree b2380e8f70e86581af453c9500a028d846d8bfd3
parent 5121961421b801fd89b82188be6bb20462119c08
author Tao Bao <tbao@google.com> 1486673959 -0800
committer Tao Bao <tbao@google.com> 1486673959 -0800

minui: Save errno before calling close().

Otherwise errno would be overwritten when calling close(2).

Test: mmma bootable/recovery
Change-Id: I661e46b1b040f550639a728aa2683e91621b4307