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savevm: Delete snapshots just created in case of error 

bdrv_all_create_snapshot() can fails with some snapshots created,
so it's better to delete those snapshots before returns to the caller

Signed-off-by: Tuguoyi <tu.guoyi@h3c.com>
Message-Id: <1607410416-13563-3-git-send-email-tu.guoyi@h3c.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Tuguoyi 2020-12-08 14:53:36 +08:00 committed by Dr. David Alan Gilbert
parent 80ef0586d3
commit 2a909dc430
1 changed files with 1 additions and 0 deletions
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migration/savevm.c
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@ -2833,6 +2833,7 @@ int save_snapshot(const char *name, Error **errp)
if (ret < 0) {
error_setg(errp, "Error while creating snapshot on '%s'",
bdrv_get_device_or_node_name(bs));
bdrv_all_delete_snapshot(sn->name, &bs, NULL);
goto the_end;
}