From: Adrien Plazas <kekun.plazas@laposte.net>
Date: Fri, 29 Jul 2016 22:56:59 +0000 (+0200)
Subject: libretro: Check 'environ_cb' in controller setters
X-Git-Tag: r24l~845^2
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3dc2e39eebfc512aa0d8f1a2ce435aaa8a599ac1;hp=3dc2e39eebfc512aa0d8f1a2ce435aaa8a599ac1;p=pcsx_rearmed.git

libretro: Check 'environ_cb' in controller setters

Check that 'environ_cb' is valid before using it in update_multitap()
and update_controller_port_device() as they may be called from
retro_set_controller_port_device() before 'environ_cb' is set.
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