We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling.
Reviewed-by: Christoph Hellwig <h...@lst.de>
Reviewed-by: Hannes Reinecke <h...@suse.de>
Signed-off-by: Luis Chamberlain <mcg...@kernel.org>
---
drivers/block/nbd.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 5170a630778d..741365295157 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1757,7 +1757,9 @@ static struct nbd_device *nbd_dev_add(int index, unsigned
int refs)
disk->fops = &nbd_fops;
disk->private_data = nbd;
sprintf(disk->disk_name, "nbd%d", index);
- add_disk(disk);
+ err = add_disk(disk);
+ if (err)
+ goto out_err_disk;
/*
* Now publish the device.
@@ -1766,6 +1768,8 @@ static struct nbd_device *nbd_dev_add(int index, unsigned
int refs)
nbd_total_devices++;
return nbd;
+out_err_disk:
+ blk_cleanup_disk(disk);
out_free_idr:
mutex_lock(&nbd_index_mutex);
idr_remove(&nbd_index_idr, index);
--
2.30.2
--
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