Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f084c646637_9261_top_title_green_frog.gif
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pass = 0;
y1 = 0;
for (y = 0; y < height; y++) {
- if (ff_lzw_decode(s->lzw, s->idx_line, width) == 0)
+ int count = ff_lzw_decode(s->lzw, s->idx_line, width);
+ if (count != width) {
+ if (count)
+ av_log(s->avctx, AV_LOG_ERROR, "LZW decode failed\n");
goto decode_tail;
+ }
pr = ptr + width;