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nvme: release namespace head reference on error

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commit ac262508daa88fb12c5dc53cf30bde163f9f26c9 upstream.

If a namespace identification does not match the subsystem's head for
that NSID, release the reference that was taken when the matching head
was initially found.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Keith Busch 2020-04-09 09:09:00 -07:00 • committed by Greg Kroah-Hartman
commit 4e2156c0d3
1 changed files with 1 additions and 0 deletions
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1
drivers/nvme/host/core.c
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@ -3467,6 +3467,7 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
"IDs don't match for shared namespace %d\n",
nsid);
ret = -EINVAL;
nvme_put_ns_head(head);
goto out_unlock;
}
}