D15162.id41740.diff
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	Index: sys/dev/nvme/nvme_ns.c
	===================================================================
	--- sys/dev/nvme/nvme_ns.c
	+++ sys/dev/nvme/nvme_ns.c
	@@ -494,7 +494,9 @@
	nvme_ns_construct(struct nvme_namespace *ns, uint32_t id,
	struct nvme_controller *ctrlr)
	{
	+ struct make_dev_args md_args;
	struct nvme_completion_poll_status status;
	+ int res;
	int unit;
	uint16_t oncs;
	uint8_t dsm;
	@@ -577,15 +579,20 @@
	*/
	unit = device_get_unit(ctrlr->dev) * NVME_MAX_NAMESPACES + ns->id - 1;

	- ns->cdev = make_dev_credf(0, &nvme_ns_cdevsw, unit,
	- NULL, UID_ROOT, GID_WHEEL, 0600, "nvme%dns%d",
	+ make_dev_args_init(&md_args);
	+ md_args.mda_devsw = &nvme_ns_cdevsw;
	+ md_args.mda_unit = unit;
	+ md_args.mda_mode = 0600;
	+ res = make_dev_s(&md_args, &ns->cdev, "nvme%dns%d",
	device_get_unit(ctrlr->dev), ns->id);
	+ if (res != 0)
	+ return (ENXIO);
	+
	#ifdef NVME_UNMAPPED_BIO_SUPPORT
	ns->cdev->si_flags \|= SI_UNMAPPED;
	#endif

	- if (ns->cdev != NULL)
	- ns->cdev->si_drv1 = ns;
	+ ns->cdev->si_drv1 = ns;

	return (0);
	}