From 38864a6d6bf2dea8110e92dd05ea9e36faddfba5 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Fri, 5 Jul 2013 00:30:23 -0400
Subject: [PATCH] Don't close already-closed audio devices during SDL_Quit().

Otherwise, we spam a bunch of unnecessary SDL_SetError() calls.

Fixes Bugzilla #1791.
---
 src/audio/SDL_audio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/audio/SDL_audio.c b/src/audio/SDL_audio.c
index f6763f9b6..059b75d29 100644
--- a/src/audio/SDL_audio.c
+++ b/src/audio/SDL_audio.c
@@ -1174,7 +1174,9 @@ SDL_AudioQuit(void)
 {
     SDL_AudioDeviceID i;
     for (i = 0; i < SDL_arraysize(open_devices); i++) {
-        SDL_CloseAudioDevice(i);
+        if (open_devices[i] != NULL) {
+            SDL_CloseAudioDevice(i);
+        }
     }
 
     /* Free the driver data */