[FFmpeg-cvslog] wavpack: Check error codes rather than working around error conditions.

[Alex Converse]

ffmpeg | branch: release/0.8 | Alex Converse <alex.converse at gmail.com> | Thu Sep  8 11:02:43 2011 -0700| [8a8aafd2b901f78a3ce02fad717482ae58ab72b7] | committer: Michael Niedermayer

wavpack: Check error codes rather than working around error conditions.
(cherry picked from commit dba2b63a98bdcac7bda1a8a2c48950518c075e17)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8a8aafd2b901f78a3ce02fad717482ae58ab72b7
---

 libavcodec/wavpack.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 1e6d857..61a75fd 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -1141,7 +1141,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
             int16_t *dst = (int16_t*)samples + 1;
             int16_t *src = (int16_t*)samples;
             int cnt = samplecount;
-            while(cnt-- > 0){
+            while(cnt--){
                 *dst = *src;
                 src += channel_stride;
                 dst += channel_stride;
@@ -1150,7 +1150,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
             int32_t *dst = (int32_t*)samples + 1;
             int32_t *src = (int32_t*)samples;
             int cnt = samplecount;
-            while(cnt-- > 0){
+            while(cnt--){
                 *dst = *src;
                 src += channel_stride;
                 dst += channel_stride;
@@ -1159,7 +1159,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
             float *dst = (float*)samples + 1;
             float *src = (float*)samples;
             int cnt = samplecount;
-            while(cnt-- > 0){
+            while(cnt--){
                 *dst = *src;
                 src += channel_stride;
                 dst += channel_stride;