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authorMax Reitz <mreitz@redhat.com>2013-10-09 14:42:00 +0200
committerKevin Wolf <kwolf@redhat.com>2013-10-11 16:50:00 +0200
commit84757f7e67cda3df8b04e06fbdeecc266415d2f3 (patch)
tree434dad1032c0a6b7ff077d2fe62c68bdd2cf8b21
parentf9bff971436b5924ca3c3203c6a3dcd6437bd430 (diff)
qcow2: Fix snapshot restoration in snapshot_create
If the new snapshot table could not be written in qcow2_snapshot_create, the old snapshot table has to be restored in memory and the new one released. This should include restoration of the old snapshot count as well, which is added by this patch. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/qcow2-snapshot.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 812dab2aa5..fe7e14cc89 100644
--- a/block/qcow2-snapshot.c
+++ b/block/qcow2-snapshot.c
@@ -433,6 +433,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info)
if (ret < 0) {
g_free(s->snapshots);
s->snapshots = old_snapshot_list;
+ s->nb_snapshots--;
goto fail;
}