diff options
| -rw-r--r-- | sys/src/cmd/jpg/readpng.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/src/cmd/jpg/readpng.c b/sys/src/cmd/jpg/readpng.c index a4c54e89e..ef14e013f 100644 --- a/sys/src/cmd/jpg/readpng.c +++ b/sys/src/cmd/jpg/readpng.c @@ -388,8 +388,8 @@ readslave(Biobuf *b) ZlibW zw; buf = pngmalloc(IDATSIZE, 0); - Bread(b, buf, sizeof PNGmagic); - if(memcmp(PNGmagic, buf, sizeof PNGmagic) != 0) + if(Bread(b, buf, sizeof PNGmagic) != sizeof PNGmagic + || memcmp(PNGmagic, buf, sizeof PNGmagic) != 0) sysfatal("bad PNGmagic"); n = getchunk(b, type, buf, IDATSIZE); |