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: linux-block@vger.kernel.org, bvanassche@acm.org,
linux-scsi@vger.kernel.org, linux-mmc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
ming.lei@redhat.com, hch@infradead.org, dm-devel@redhat.com,
nbd@other.debian.org, Luis Chamberlain <mcgrof@kernel.org>
Subject: [dm-devel] [PATCH v2 3/6] nvme: add error handling support for add_disk()
Date: Fri, 27 Aug 2021 12:05:01 -0700 [thread overview]
Message-ID: <20210827190504.3103362-4-mcgrof@kernel.org> (raw)
In-Reply-To: <20210827190504.3103362-1-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.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
drivers/nvme/host/core.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 8679a108f571..687d3be563a3 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3763,7 +3763,9 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
nvme_get_ctrl(ctrl);
- device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups);
+ if (device_add_disk(ctrl->device, ns->disk, nvme_ns_id_attr_groups))
+ goto out_cleanup_ns_from_list;
+
if (!nvme_ns_head_multipath(ns->head))
nvme_add_ns_cdev(ns);
@@ -3773,6 +3775,11 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid,
return;
+ out_cleanup_ns_from_list:
+ nvme_put_ctrl(ctrl);
+ down_write(&ctrl->namespaces_rwsem);
+ list_del_init(&ns->list);
+ up_write(&ctrl->namespaces_rwsem);
out_unlink_ns:
mutex_lock(&ctrl->subsys->lock);
list_del_rcu(&ns->siblings);
--
2.30.2
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-08-27 19:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 19:04 [dm-devel] [PATCH v2 0/6] block: first batch of add_disk() error handling conversions Luis Chamberlain
2021-08-27 19:04 ` [dm-devel] [PATCH v2 1/6] scsi/sd: add error handling support for add_disk() Luis Chamberlain
2021-08-27 19:05 ` [dm-devel] [PATCH v2 2/6] scsi/sr: " Luis Chamberlain
2021-08-27 19:05 ` Luis Chamberlain [this message]
2021-08-28 7:11 ` [dm-devel] [PATCH v2 3/6] nvme: " Christoph Hellwig
2021-08-27 19:05 ` [dm-devel] [PATCH v2 4/6] md: " Luis Chamberlain
2021-08-27 19:05 ` [dm-devel] [PATCH v2 5/6] loop: " Luis Chamberlain
2021-08-27 19:05 ` [dm-devel] [PATCH v2 6/6] nbd: " Luis Chamberlain
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