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authorDan Williams <dan.j.williams@intel.com>2016-09-15 18:08:05 -0700
committerDan Williams <dan.j.williams@intel.com>2016-09-21 09:36:36 -0700
commit4765218db79561ce13922806716eadb138c65439 (patch)
tree37655a12940abc7196d173834b86e7595c116ddb /drivers/nvdimm
parent73606afd4603a2f6296cd44c4d2b385916565a58 (diff)
libnvdimm, namespace: debug invalid interleave-set-cookie values
If platform firmware fails to populate unique / non-zero serial number data for each nvdimm in an interleave-set it may cause pmem region initialization to fail. Add a debug message for this case. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/namespace_devs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 6b0449bd7720..4f0a21308417 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1584,8 +1584,10 @@ static int find_pmem_label_set(struct nd_region *nd_region,
int rc = -ENODEV, l;
u16 i;
- if (cookie == 0)
+ if (cookie == 0) {
+ dev_dbg(&nd_region->dev, "invalid interleave-set-cookie\n");
return -ENXIO;
+ }
/*
* Find a complete set of labels by uuid. By definition we can start