nvme: return error from nvme_alloc_ns()

nvme_alloc_ns() might fail, so we should be returning an error code.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
1 file changed