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path: root/drivers/nvdimm/dimm.c
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Diffstat (limited to 'drivers/nvdimm/dimm.c')
-rw-r--r--drivers/nvdimm/dimm.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/nvdimm/dimm.c b/drivers/nvdimm/dimm.c
index 9899c97138a3..1b3d9e7b2ffe 100644
--- a/drivers/nvdimm/dimm.c
+++ b/drivers/nvdimm/dimm.c
@@ -34,7 +34,11 @@ static int nvdimm_probe(struct device *dev)
return rc;
}
- /* reset locked, to be validated below... */
+ /*
+ * The locked status bit reflects explicit status codes from the
+ * label reading commands, revalidate it each time the driver is
+ * activated and re-reads the label area.
+ */
nvdimm_clear_locked(dev);
ndd = kzalloc(sizeof(*ndd), GFP_KERNEL);
@@ -52,6 +56,16 @@ static int nvdimm_probe(struct device *dev)
kref_init(&ndd->kref);
/*
+ * Attempt to unlock, if the DIMM supports security commands,
+ * otherwise the locked indication is determined by explicit
+ * status codes from the label reading commands.
+ */
+ rc = nvdimm_security_unlock(dev);
+ if (rc < 0)
+ dev_err(dev, "failed to unlock dimm: %d\n", rc);
+
+
+ /*
* EACCES failures reading the namespace label-area-properties
* are interpreted as the DIMM capacity being locked but the
* namespace labels themselves being accessible.