diff options
Diffstat (limited to 'drivers/nvdimm/region_devs.c')
| -rw-r--r-- | drivers/nvdimm/region_devs.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index 0ff43cbb15e3..19bcd68c4141 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -487,6 +487,17 @@ u64 nd_region_interleave_set_cookie(struct nd_region *nd_region) return 0; } +void nd_mapping_free_labels(struct nd_mapping *nd_mapping) +{ + struct nd_label_ent *label_ent, *e; + + WARN_ON(!mutex_is_locked(&nd_mapping->lock)); + list_for_each_entry_safe(label_ent, e, &nd_mapping->labels, list) { + list_del(&label_ent->list); + kfree(label_ent); + } +} + /* * Upon successful probe/remove, take/release a reference on the * associated interleave set (if present), and plant new btt + namespace @@ -507,8 +518,10 @@ static void nd_region_notify_driver_action(struct nvdimm_bus *nvdimm_bus, struct nvdimm_drvdata *ndd = nd_mapping->ndd; struct nvdimm *nvdimm = nd_mapping->nvdimm; - kfree(nd_mapping->labels); - nd_mapping->labels = NULL; + mutex_lock(&nd_mapping->lock); + nd_mapping_free_labels(nd_mapping); + mutex_unlock(&nd_mapping->lock); + put_ndd(ndd); nd_mapping->ndd = NULL; if (ndd) @@ -816,6 +829,8 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus, nd_region->mapping[i].nvdimm = nvdimm; nd_region->mapping[i].start = mapping->start; nd_region->mapping[i].size = mapping->size; + INIT_LIST_HEAD(&nd_region->mapping[i].labels); + mutex_init(&nd_region->mapping[i].lock); get_device(&nvdimm->dev); } |