From: Luis Chamberlain <mcgrof@kernel.org>
To: axboe@kernel.dk, martin.petersen@oracle.com, jejb@linux.ibm.com,
kbusch@kernel.org, sagi@grimberg.me, adrian.hunter@intel.com,
beanhuo@micron.com, ulf.hansson@linaro.org, avri.altman@wdc.com,
swboyd@chromium.org, agk@redhat.com, snitzer@redhat.com,
josef@toxicpanda.com
Cc: hch@infradead.org, hare@suse.de, bvanassche@acm.org,
ming.lei@redhat.com, linux-scsi@vger.kernel.org,
linux-nvme@lists.infradead.org, linux-mmc@vger.kernel.org,
dm-devel@redhat.com, nbd@other.debian.org,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>,
Christoph Hellwig <hch@lst.de>
Subject: [PATCH v3 8/8] nbd: add error handling support for add_disk()
Date: Mon, 30 Aug 2021 14:25:38 -0700 [thread overview]
Message-ID: <20210830212538.148729-9-mcgrof@kernel.org> (raw)
In-Reply-To: <20210830212538.148729-1-mcgrof@kernel.org>
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 <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@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
next prev parent reply other threads:[~2021-08-30 21:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 21:25 [PATCH v3 0/8] block: first batch of add_disk() error handling conversions Luis Chamberlain
2021-08-30 21:25 ` [PATCH v3 1/8] scsi/sd: add error handling support for add_disk() Luis Chamberlain
2021-09-06 6:13 ` Hannes Reinecke
2021-09-07 1:29 ` Ming Lei
2021-09-13 17:21 ` Luis Chamberlain
2021-08-30 21:25 ` [PATCH v3 2/8] scsi/sr: " Luis Chamberlain
2021-09-06 6:13 ` Hannes Reinecke
2021-09-07 1:37 ` Ming Lei
2021-09-13 17:26 ` Luis Chamberlain
2021-08-30 21:25 ` [PATCH v3 3/8] nvme: " Luis Chamberlain
2021-09-06 6:16 ` Hannes Reinecke
2021-09-06 8:09 ` Christoph Hellwig
2021-09-06 8:09 ` Christoph Hellwig
2021-08-30 21:25 ` [PATCH v3 4/8] mmc/core/block: " Luis Chamberlain
2021-09-06 17:10 ` Ulf Hansson
2021-08-30 21:25 ` [PATCH v3 5/8] md: " Luis Chamberlain
2021-09-06 6:17 ` Hannes Reinecke
2021-08-30 21:25 ` [PATCH v3 6/8] dm: add add_disk() error handling Luis Chamberlain
2021-09-06 6:19 ` Hannes Reinecke
2021-08-30 21:25 ` [PATCH v3 7/8] loop: add error handling support for add_disk() Luis Chamberlain
2021-09-06 6:19 ` Hannes Reinecke
2021-08-30 21:25 ` Luis Chamberlain [this message]
2021-09-06 6:20 ` [PATCH v3 8/8] nbd: " Hannes Reinecke
2021-09-01 4:19 ` [PATCH v3 0/8] block: first batch of add_disk() error handling conversions Tetsuo Handa
2021-09-01 5:30 ` Christoph Hellwig
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