diff options
| -rw-r--r-- | block/io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/io.c b/block/io.c index 7e4cb74cf4..aba67f66b9 100644 --- a/block/io.c +++ b/block/io.c @@ -1399,7 +1399,7 @@ static int coroutine_fn bdrv_co_do_copy_on_readv(BdrvChild *child, if (!(flags & BDRV_REQ_PREFETCH)) { qemu_iovec_from_buf(qiov, qiov_offset + progress, bounce_buffer + skip_bytes, - pnum - skip_bytes); + MIN(pnum - skip_bytes, bytes - progress)); } } else if (!(flags & BDRV_REQ_PREFETCH)) { /* Read directly into the destination */ |