[PATCH v5 01/14] nvdimm/btt: use goto error labels on btt_blk_init()

Luis Chamberlain
2021-11-03T23:05:00Z

This will make it easier to share common error paths.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
drivers/nvdimm/btt.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 9b9d5e506e11..5cb6d7ac6e36 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1519,6 +1519,7 @@ static int btt_blk_init(struct btt *btt)
{
struct nd_btt *nd_btt = btt->nd_btt;
struct nd_namespace_common *ndns = nd_btt->ndns;
+ int rc = -ENOMEM;

btt->btt_disk = blk_alloc_disk(NUMA_NO_NODE);
if (!btt->btt_disk)
@@ -1534,19 +1535,22 @@ static int btt_blk_init(struct btt *btt)
blk_queue_flag_set(QUEUE_FLAG_NONROT, btt->btt_disk->queue);

if (btt_meta_size(btt)) {
- int rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
-
- if (rc) {
- blk_cleanup_disk(btt->btt_disk);
- return rc;
- }
+ rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
+ if (rc)
+ goto out_cleanup_disk;
}
+
set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);
device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL);
+
btt->nd_btt->size = btt->nlba * (u64)btt->sector_size;
nvdimm_check_and_set_ro(btt->btt_disk);

return 0;
+
+out_cleanup_disk:
+ blk_cleanup_disk(btt->btt_disk);
+ return rc;
}

static void btt_blk_cleanup(struct btt *btt)
--
2.33.0