Thread (36 messages) 36 messages, 8 authors, 2021-11-03
STALE1725d
Revisions (3)
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  2. v2 [diff vs current]
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[PATCH 05/13] nvdimm/btt: add error handling support for add_disk()

From: Luis Chamberlain <mcgrof@kernel.org>
Date: 2021-10-15 23:53:14
Also in: linux-block, linux-nvme, lkml, nvdimm
Subsystem: libnvdimm btt: block translation table, libnvdimm: non-volatile memory device subsystem, the rest · Maintainers: Vishal Verma, Dan Williams, Dave Jiang, Alison Schofield, Linus Torvalds

We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/nvdimm/btt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 23ee8c005db5..57b921c5fbb5 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1542,7 +1542,9 @@ static int btt_blk_init(struct btt *btt)
 	}
 
 	set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);
-	device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL);
+	rc = device_add_disk(&btt->nd_btt->dev, btt->btt_disk, NULL);
+	if (rc)
+		goto out_cleanup_disk;
 
 	btt->nd_btt->size = btt->nlba * (u64)btt->sector_size;
 	nvdimm_check_and_set_ro(btt->btt_disk);
-- 
2.30.2
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