diff options
| -rw-r--r-- | block/qcow2-refcount.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index c38e970bf2..4799681137 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -747,10 +747,9 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs, if (l1_table_offset != s->l1_table_offset) { l1_table = g_malloc0(align_offset(l1_size2, 512)); l1_allocated = 1; - if (bdrv_pread(bs->file, l1_table_offset, - l1_table, l1_size2) != l1_size2) - { - ret = -EIO; + + ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2); + if (ret < 0) { goto fail; } @@ -802,7 +801,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs, } if (refcount < 0) { - ret = -EIO; + ret = refcount; goto fail; } } @@ -833,7 +832,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs, refcount = get_refcount(bs, l2_offset >> s->cluster_bits); } if (refcount < 0) { - ret = -EIO; + ret = refcount; goto fail; } else if (refcount == 1) { l2_offset |= QCOW_OFLAG_COPIED; |