Message ID | 1380029714-5239-16-git-send-email-pl@kamp.de |
---|---|
State | New |
Headers | show |
diff --git a/block.c b/block.c index 3499c90..3bf1163 100644 --- a/block.c +++ b/block.c @@ -3266,7 +3266,7 @@ static int64_t coroutine_fn bdrv_co_get_block_status(BlockDriverState *bs, if (!(ret & BDRV_BLOCK_DATA)) { if (bdrv_has_zero_init(bs)) { ret |= BDRV_BLOCK_ZERO; - } else { + } else if (bs->backing_hd) { BlockDriverState *bs2 = bs->backing_hd; int64_t length2 = bdrv_getlength(bs2); if (length2 >= 0 && sector_num >= (length2 >> BDRV_SECTOR_BITS)) {