diff options
Diffstat (limited to 'block/qcow2-cluster.c')
| -rw-r--r-- | block/qcow2-cluster.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 3a979bcd82..f077cd3ac5 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -2070,7 +2070,15 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs, int l1_sectors = DIV_ROUND_UP(s->snapshots[i].l1_size * sizeof(uint64_t), BDRV_SECTOR_SIZE); - l1_table = g_realloc(l1_table, l1_sectors * BDRV_SECTOR_SIZE); + uint64_t *new_l1_table = + g_try_realloc(l1_table, l1_sectors * BDRV_SECTOR_SIZE); + + if (!new_l1_table) { + ret = -ENOMEM; + goto fail; + } + + l1_table = new_l1_table; ret = bdrv_read(bs->file, s->snapshots[i].l1_table_offset / BDRV_SECTOR_SIZE, |