diff options
Diffstat (limited to 'block/qcow2-snapshot.c')
| -rw-r--r-- | block/qcow2-snapshot.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index 94cb838064..d63c7e17d8 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -266,7 +266,12 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) sn->l1_table_offset = qcow2_alloc_clusters(bs, s->l1_size * sizeof(uint64_t)); sn->l1_size = s->l1_size; - l1_table = qemu_malloc(s->l1_size * sizeof(uint64_t)); + if (s->l1_size != 0) { + l1_table = qemu_malloc(s->l1_size * sizeof(uint64_t)); + } else { + l1_table = NULL; + } + for(i = 0; i < s->l1_size; i++) { l1_table[i] = cpu_to_be64(s->l1_table[i]); } |