rtpdec_asf: fix memleak

Based on a suggestion by Ronald S. Bultje
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a2b66a366d)

Doxyfile

@@ -31,7 +31,7 @@ PROJECT_NAME           = FFmpeg
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.8.2
+PROJECT_NUMBER         = 0.8.3
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.

RELEASE

@@ -1 +1 @@
-0.8.2
+0.8.3

VERSION

@@ -1 +1 @@
-0.8.2
+0.8.3

libavformat/rtpdec_asf.c

@@ -233,10 +233,14 @@ static int asfrtp_parse_packet(AVFormatContext *s, PayloadContext *asf,
 
                 int cur_len = start_off + len_off - off;
                 int prev_len = out_len;
+                void *newbuf;
                 out_len += cur_len;
-                asf->buf = av_realloc(asf->buf, out_len);
-                if(!asf->buf || FFMIN(cur_len, len - off)<0)
+                if(FFMIN(cur_len, len - off)<0)
                     return -1;
+                newbuf = av_realloc(asf->buf, out_len);
+                if(!newbuf)
+                    return -1;
+                asf->buf= newbuf;
                 memcpy(asf->buf + prev_len, buf + off,
                        FFMIN(cur_len, len - off));
                 avio_skip(pb, cur_len);