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libnvdimm, namespace: debug invalid interleave-set-cookie values

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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>
This commit is contained in:
Dan Williams 2016-09-15 18:08:05 -07:00
parent 73606afd46
commit 4765218db7
1 changed files with 3 additions and 1 deletions
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4
drivers/nvdimm/namespace_devs.c
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@ -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