[FFmpeg-cvslog] avcodec/bonk: step cannot become 0 without overflowing which is undefined

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Nov  6 13:34:28 2022 +0100| [104b516a13c3281e020fbaf751185b368baae5af] | committer: Michael Niedermayer

avcodec/bonk: step cannot become 0 without overflowing which is undefined

also the original reference code does not contain a 0 check

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=104b516a13c3281e020fbaf751185b368baae5af
---

 libavcodec/bonk.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libavcodec/bonk.c b/libavcodec/bonk.c
index 1a7a063c0d..2b2e202428 100644
--- a/libavcodec/bonk.c
+++ b/libavcodec/bonk.c
@@ -203,8 +203,6 @@ static int intlist_read(BonkContext *s, int *buf, int entries, int base_2_part)
         }
 
         if (step < 256) {
-            if (step == 0)
-                return AVERROR_INVALIDDATA;
             step = 65536 / step;
             dominant = !dominant;
         }