From 3dd2c8bbbc725bb596eca879908881d252114243 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <ubitux@gmail.com>
Date: Thu, 1 Sep 2011 20:06:05 +0200
Subject: [PATCH] wav: init st to NULL to avoid a false-positive warning.

If st is NULL, it means no 'fmt ' tag is found, but 'data' tag (which
needs a previous 'fmt ' tag to be parsed correctly and st initialized)
check will make sure st is never dereferenced in that case.
---
 libavformat/wav.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/wav.c b/libavformat/wav.c
index 1ae9413aed..327d8917b8 100644
--- a/libavformat/wav.c
+++ b/libavformat/wav.c
@@ -387,7 +387,7 @@ static int wav_read_header(AVFormatContext *s,
     int rf64;
     unsigned int tag;
     AVIOContext *pb = s->pb;
-    AVStream *st;
+    AVStream *st = NULL;
     WAVContext *wav = s->priv_data;
     int ret, got_fmt = 0;
     int64_t next_tag_ofs, data_ofs = -1;