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authorDan Williams <dan.j.williams@intel.com>2016-05-18 10:06:48 -0700
committerDan Williams <dan.j.williams@intel.com>2016-05-18 10:06:48 -0700
commit2159669f581917c4d197d3ea183d3d85b47faf66 (patch)
tree9faa8bbf19fa1ea33e371b02cfa5a5b4507583de /drivers/nvdimm/btt.c
parent594d6d96ea042366878aa7dc7f5711b8c245db5a (diff)
parent9dec4892ca9afd6aad3c9c9e6c17480ecbd04440 (diff)
Merge branch 'for-4.7/libnvdimm' into libnvdimm-for-next
Diffstat (limited to 'drivers/nvdimm/btt.c')
-rw-r--r--drivers/nvdimm/btt.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index cc9fafed9362..68a7c3c1eed9 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1383,11 +1383,15 @@ int nvdimm_namespace_attach_btt(struct nd_namespace_common *ndns)
struct btt *btt;
size_t rawsize;
- if (!nd_btt->uuid || !nd_btt->ndns || !nd_btt->lbasize)
+ if (!nd_btt->uuid || !nd_btt->ndns || !nd_btt->lbasize) {
+ dev_dbg(&nd_btt->dev, "incomplete btt configuration\n");
return -ENODEV;
+ }
rawsize = nvdimm_namespace_capacity(ndns) - SZ_4K;
if (rawsize < ARENA_MIN_SIZE) {
+ dev_dbg(&nd_btt->dev, "%s must be at least %ld bytes\n",
+ dev_name(&ndns->dev), ARENA_MIN_SIZE + SZ_4K);
return -ENXIO;
}
nd_region = to_nd_region(nd_btt->dev.parent);

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