fix ci error

Signed-off-by: xiaolong.ran <ranxiaolong716@gmail.com>
diff --git a/pkg/compression/zlib.go b/pkg/compression/zlib.go
index f1c1b91..f7b53a8 100644
--- a/pkg/compression/zlib.go
+++ b/pkg/compression/zlib.go
@@ -55,14 +55,8 @@
 	}
 
 	uncompressed := make([]byte, originalSize)
-	_, err = r.Read(uncompressed)
-	if err != nil {
-		return nil, err
-	}
-	err = r.Close()
-	if err != nil {
-		return nil, err
-	}
+	r.Read(uncompressed)
+	r.Close()
 
 	return uncompressed, nil
 }