op.#SaveImage: fix data race

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
2021-10-12 16:05:43 -07:00 · 2021-10-12 16:05:43 -07:00 · e5c571b8a9
commit e5c571b8a9
parent b2c4fea73d
1 changed files with 2 additions and 0 deletions
--- a/environment/pipeline.go
+++ b/environment/pipeline.go
@ -892,6 +892,8 @@ func (p *Pipeline) SaveImage(ctx context.Context, op *compiler.Value, st llb.Sta
 		image []byte
 	)
 	go func() {
+		var err error
+
 		image, err = io.ReadAll(pipeR)
 		errCh <- err
 	}()