From 30d6cec1bbe0255ea4dbc2e943615e445f313a30 Mon Sep 17 00:00:00 2001
From: Philipp Wiesemann <philipp.wiesemann@arcor.de>
Date: Sun, 26 Oct 2014 17:53:16 +0100
Subject: [PATCH] Added handling of NULL as input for
 SDL_GameControllerMapping().

For consistency with the similar functions getting SDL_GameController as input.
Also NULL is no SDL_GameController and therefore can not have a mapping anyway.
---
 src/joystick/SDL_gamecontroller.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/joystick/SDL_gamecontroller.c b/src/joystick/SDL_gamecontroller.c
index fbfc5d4b4caec..e995e2ada3a78 100644
--- a/src/joystick/SDL_gamecontroller.c
+++ b/src/joystick/SDL_gamecontroller.c
@@ -746,6 +746,10 @@ SDL_GameControllerMappingForGUID(SDL_JoystickGUID guid)
 char *
 SDL_GameControllerMapping(SDL_GameController * gamecontroller)
 {
+    if (!gamecontroller) {
+        return NULL;
+    }
+
     return SDL_GameControllerMappingForGUID(gamecontroller->mapping.guid);
 }