From 4101f87d1767c2f8b87d099a6212c0a0317af8ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Tue, 6 Mar 2012 14:25:27 +0100
Subject: [PATCH] wavpack: Fix possible underflow of unsigned integer variable

---
 ext/wavpack/gstwavpackstreamreader.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ext/wavpack/gstwavpackstreamreader.c b/ext/wavpack/gstwavpackstreamreader.c
index 074a2e7d5d..da1fdc27bc 100644
--- a/ext/wavpack/gstwavpackstreamreader.c
+++ b/ext/wavpack/gstwavpackstreamreader.c
@@ -78,9 +78,10 @@ gst_wavpack_stream_reader_push_back_byte (void *id, int c)
 
   GST_DEBUG ("Pushing back one byte: 0x%x", c);
 
+  if (rid->position == 0)
+    return rid->position;
+
   rid->position -= 1;
-  if (rid->position < 0)
-    rid->position = 0;
   return rid->position;
 }