From 12e8e432368a300517a789bd6045502964ad95cf Mon Sep 17 00:00:00 2001
From: Andree Buschmann <AndreeBuschmann@t-online.de>
Date: Mon, 9 May 2011 20:43:35 +0000
Subject: [PATCH] Use signed variable to check available buffer size.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29848 a1c6a512-1295-4272-9138-f99709370657
---
 apps/codecs.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/apps/codecs.c b/apps/codecs.c
index ec566dba06..249cd8f5c1 100644
--- a/apps/codecs.c
+++ b/apps/codecs.c
@@ -177,12 +177,14 @@ void codec_get_full_path(char *path, const char *codec_root_fn)
 void *codec_get_buffer_callback(size_t *size)
 {
     void *buf = &codecbuf[codec_size];
-    *size = CODEC_SIZE - codec_size;
-    ALIGN_BUFFER(buf, *size, CACHEALIGN_SIZE);
+    ssize_t s = CODEC_SIZE - codec_size;
 
-    if (*size <= 0)
+    if (s <= 0)
         return NULL;
 
+    *size = s;
+    ALIGN_BUFFER(buf, *size, CACHEALIGN_SIZE);
+
     return buf;
 }