49   struct bchlib_s *bch;  in bchlib_setup()  local
58   bch = (struct bchlib_s *)zalloc(sizeof(struct bchlib_s));  in bchlib_setup()
59   if (!bch)  in bchlib_setup()
67   ret = open_blockdriver(blkdev, readonly ? MS_RDONLY : 0, &bch->vnode);  in bchlib_setup()
74   struct drv_data *drv = (struct drv_data *)bch->vnode->data;  in bchlib_setup()
77   DEBUGASSERT(bch->vnode && bops && bops->geometry);  in bchlib_setup()
79   ret = bops->geometry(bch->vnode, &geo);  in bchlib_setup()
102   (void)sem_init(&bch->sem, 0, 1);  in bchlib_setup()
103   bch->nsectors = geo.geo_nsectors;  in bchlib_setup()
104   bch->sectsize = geo.geo_sectorsize;  in bchlib_setup()
105   bch->sector   = (size_t)-1;  in bchlib_setup()
106   bch->readonly = readonly;  in bchlib_setup()
107   bch->dirty    = false;  in bchlib_setup()
108   bch->unlinked = false;  in bchlib_setup()
110   part = los_part_find(bch->vnode);  in bchlib_setup()
113       bch->sectstart = part->sector_start;  in bchlib_setup()
114       bch->nsectors = part->sector_count;  in bchlib_setup()
115       bch->disk = get_disk(part->disk_id);  in bchlib_setup()
126   bch->buffer = (uint8_t *)malloc(bch->sectsize);  in bchlib_setup()
127   if (!bch->buffer)  in bchlib_setup()
134   *handle = bch;  in bchlib_setup()
138   (void)sem_destroy(&bch->sem);  in bchlib_setup()
139   free(bch);  in bchlib_setup()