libnvdimm: handle locked label storage areas
Per the latest version of the "NVDIMM DSM Interface Example" [1], the
label data retrieval routine can report a "locked" status. In this case
all regions associated with that DIMM are disabled until the label area
is unlocked. Provide generic libnvdimm enabling for NVDIMMs with label
data area locking capabilities.
[1]: http://pmem.io/documents/
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/nvdimm/dimm.c b/drivers/nvdimm/dimm.c
index ee0b412..e0f0e3c 100644
--- a/drivers/nvdimm/dimm.c
+++ b/drivers/nvdimm/dimm.c
@@ -49,6 +49,8 @@ static int nvdimm_probe(struct device *dev)
kref_init(&ndd->kref);
rc = nvdimm_init_nsarea(ndd);
+ if (rc == -EACCES)
+ nvdimm_set_locked(dev);
if (rc)
goto err;
