diff mbox

[PULL,23/61] qcow2: Fix snapshot restoration in snapshot_create

Message ID 1381503951-27985-24-git-send-email-kwolf@redhat.com
State New
Headers show

Commit Message

Kevin Wolf Oct. 11, 2013, 3:05 p.m. UTC 
From: Max Reitz <mreitz@redhat.com>

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>
---
 block/qcow2-snapshot.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c
index 812dab2..fe7e14c 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;
     }