[PULL 14/15] savevm: Delete snapshots just created in case of error

[Dr. David Alan Gilbert (git)]

From: Tuguoyi <tu.guoyi@h3c.com>

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>
---
 migration/savevm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/migration/savevm.c b/migration/savevm.c
index 601b5144b8..4a18c9d897 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -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;
     }
 
-- 
2.29.2