diff options
Diffstat (limited to 'drivers/nvdimm/region_devs.c')
| -rw-r--r-- | drivers/nvdimm/region_devs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index e7377f1028ef..e2818f94f292 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -79,6 +79,11 @@ int nd_region_activate(struct nd_region *nd_region) struct nd_mapping *nd_mapping = &nd_region->mapping[i]; struct nvdimm *nvdimm = nd_mapping->nvdimm; + if (test_bit(NDD_SECURITY_OVERWRITE, &nvdimm->flags)) { + nvdimm_bus_unlock(&nd_region->dev); + return -EBUSY; + } + /* at least one null hint slot per-dimm for the "no-hint" case */ flush_data_size += sizeof(void *); num_flush = min_not_zero(num_flush, nvdimm->num_flush); |