diff options
Diffstat (limited to 'block/quorum.c')
| -rw-r--r-- | block/quorum.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/block/quorum.c b/block/quorum.c index 86e2072dce..40205fb1b3 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -1032,10 +1032,17 @@ static void quorum_add_child(BlockDriverState *bs, BlockDriverState *child_bs, /* We can safely add the child now */ bdrv_ref(child_bs); - child = bdrv_attach_child(bs, child_bs, indexstr, &child_format); + + child = bdrv_attach_child(bs, child_bs, indexstr, &child_format, errp); + if (child == NULL) { + s->next_child_index--; + bdrv_unref(child_bs); + goto out; + } s->children = g_renew(BdrvChild *, s->children, s->num_children + 1); s->children[s->num_children++] = child; +out: bdrv_drained_end(bs); } @@ -1126,6 +1133,8 @@ static BlockDriver bdrv_quorum = { .bdrv_add_child = quorum_add_child, .bdrv_del_child = quorum_del_child, + .bdrv_child_perm = bdrv_filter_default_perms, + .is_filter = true, .bdrv_recurse_is_first_non_filter = quorum_recurse_is_first_non_filter, }; |