[dovecot/core] 6eb019: lib: Fixed potential crash in i_stream_stat() fail...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 6eb0192085073a63ea03443860c412bb5312dd7e
      https://github.com/dovecot/core/commit/6eb0192085073a63ea03443860c412bb5312dd7e
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-05-13 (Fri, 13 May 2016)

  Changed paths:
    M src/lib/istream.c

  Log Message:
  -----------
  lib: Fixed potential crash in i_stream_stat() failures.

We shouldn't have been copying parent's stream_errno here. Especially
because the parent can be NULL.