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| author |   Dan Williams <dan.j.williams@intel.com> | 2017-05-04 11:47:22 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-05-04 15:41:39 -0700 |
| commit | 9d62ed96511823fa9c2ac7a819d7b4be22a9a6de (patch) | |
| tree | 960201b66f5fb6733dda4ab6b274fe6fafcf0e29 /drivers/nvdimm/dimm_devs.c | |
| parent | libnvdimm: convert NDD_ flags to use bitops, introduce NDD_LOCKED (diff) | |
| download | linux-dev-9d62ed96511823fa9c2ac7a819d7b4be22a9a6de.tar.xz linux-dev-9d62ed96511823fa9c2ac7a819d7b4be22a9a6de.zip | |
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>
Diffstat (limited to 'drivers/nvdimm/dimm_devs.c')
| -rw-r--r-- | drivers/nvdimm/dimm_devs.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index 7d1a3dbc7d5d..fac1e9fbd11d 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -67,6 +67,7 @@ int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd) struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(ndd->dev); struct nvdimm_bus_descriptor *nd_desc; int rc = validate_dimm(ndd); + int cmd_rc = 0; if (rc) return rc; @@ -76,8 +77,11 @@ int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd) memset(cmd, 0, sizeof(*cmd)); nd_desc = nvdimm_bus->nd_desc; - return nd_desc->ndctl(nd_desc, to_nvdimm(ndd->dev), - ND_CMD_GET_CONFIG_SIZE, cmd, sizeof(*cmd), NULL); + rc = nd_desc->ndctl(nd_desc, to_nvdimm(ndd->dev), + ND_CMD_GET_CONFIG_SIZE, cmd, sizeof(*cmd), &cmd_rc); + if (rc < 0) + return rc; + return cmd_rc; } int nvdimm_init_config_data(struct nvdimm_drvdata *ndd) |