image/jpeg: return io.ErrUnexpectedEOF on truncated data
Decoder calls fill from readFull, ignore and readByte and
readByte did not check returned io.EOF.
This change moves io.EOF translation inside fill.
name old speed new speed delta
DecodeBaseline-8 67.4MB/s ± 0% 67.3MB/s ± 0% -0.20% (p=0.000 n=16+19)
DecodeProgressive-8 43.7MB/s ± 0% 43.6MB/s ± 0% -0.06% (p=0.013 n=17+19)
Fixes #56724
Change-Id: Ia0d5cc561f3c2050e25ec3f2b5e6866c3b4941c7
GitHub-Last-Rev:
470154373bc1452dffc5293d9a840e972749a76d
GitHub-Pull-Request: golang/go#56863
Reviewed-on: https://go-review.googlesource.com/c/go/+/452335
Run-TryBot: Rob Pike <r@golang.org>
Reviewed-by: Nigel Tao <nigeltao@golang.org>
Reviewed-by: Nigel Tao (INACTIVE; USE @golang.org INSTEAD) <nigeltao@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>