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-rw-r--r--block/iscsi.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index 4828b83927..0b96165ec2 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -721,7 +721,12 @@ iscsi_readcapacity10_cb(struct iscsi_context *iscsi, int status,
}
itask->iscsilun->block_size = rc10->block_size;
- itask->iscsilun->num_blocks = rc10->lba + 1;
+ if (rc10->lba == 0) {
+ /* blank disk loaded */
+ itask->iscsilun->num_blocks = 0;
+ } else {
+ itask->iscsilun->num_blocks = rc10->lba + 1;
+ }
itask->bs->total_sectors = itask->iscsilun->num_blocks *
itask->iscsilun->block_size / BDRV_SECTOR_SIZE ;