diff options
| -rw-r--r-- | block/qcow2.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index d29e6b6c05..9ee34b6dd0 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -805,14 +805,14 @@ static int preallocate(BlockDriverState *bs) while (nb_sectors) { num = MIN(nb_sectors, INT_MAX >> 9); ret = qcow2_alloc_cluster_offset(bs, offset, 0, num, &num, &meta); - if (ret < 0) { - return -1; + return ret; } - if (qcow2_alloc_cluster_link_l2(bs, &meta) < 0) { + ret = qcow2_alloc_cluster_link_l2(bs, &meta); + if (ret < 0) { qcow2_free_any_clusters(bs, meta.cluster_offset, meta.nb_clusters); - return -1; + return ret; } /* There are no dependent requests, but we need to remove our request @@ -833,7 +833,10 @@ static int preallocate(BlockDriverState *bs) if (meta.cluster_offset != 0) { uint8_t buf[512]; memset(buf, 0, 512); - bdrv_write(bs->file, (meta.cluster_offset >> 9) + num - 1, buf, 1); + ret = bdrv_write(bs->file, (meta.cluster_offset >> 9) + num - 1, buf, 1); + if (ret < 0) { + return ret; + } } return 0; @@ -1030,7 +1033,7 @@ exit: BlockDriver *drv = bdrv_find_format("qcow2"); bs = bdrv_new(""); bdrv_open(bs, filename, BDRV_O_CACHE_WB | BDRV_O_RDWR, drv); - preallocate(bs); + ret = preallocate(bs); bdrv_close(bs); } |