[Commits] [wesnoth/wesnoth] ee5a6e: Check pointer before derefencing (fixes #2161)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: ee5a6e03f47f087ca31b91b6cc261a46762f294a
      https://github.com/wesnoth/wesnoth/commit/ee5a6e03f47f087ca31b91b6cc261a46762f294a
  Author: Alexander van Gessel <ai0867 at gmail.com>
  Date:   2017-11-02 (Thu, 02 Nov 2017)

  Changed paths:
    M src/sound.cpp

  Log Message:
  -----------
  Check pointer before derefencing (fixes #2161)

current_track may be uninialized when this function is called at load-time