read the actual number of bytes according to the initial size.

Signed-off-by: yuzou <zouyu7@huawei.com>
2016-02-04 16:14:35 +08:00 · 2016-02-04 16:14:35 +08:00 · 44c0b9ae87
commit 44c0b9ae87
parent c149d45cc8
1 changed files with 5 additions and 1 deletions
--- a/registry/storage/driver/testsuites/testsuites.go
+++ b/registry/storage/driver/testsuites/testsuites.go
@ -1184,7 +1184,11 @@ func (rr *randReader) Read(p []byte) (n int, err error) {
 	rr.m.Lock()
 	defer rr.m.Unlock()

-	n = copy(p, randomContents(int64(len(p))))
+	toread := int64(len(p))
+	if toread > rr.r {
+		toread = rr.r
+	}
+	n = copy(p, randomContents(toread))
 	rr.r -= int64(n)

 	if rr.r <= 0 {