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nvdimm/namespace: return uuid_null only once in nd_dev_to_uuid()

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Refactor nd_dev_to_uuid() in order to make code shorter and cleaner
by joining conditions and hence returning uuid_null only once.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220607152525.33468-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Andy Shevchenko 2022-06-07 18:25:25 +03:00 committed by Dan Williams
parent 32346491dd
commit 36a40c3738
1 changed files with 3 additions and 6 deletions
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9
drivers/nvdimm/namespace_devs.c
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@ -170,15 +170,12 @@ EXPORT_SYMBOL(nvdimm_namespace_disk_name);
const uuid_t *nd_dev_to_uuid(struct device *dev) const uuid_t *nd_dev_to_uuid(struct device *dev)
{ {
if (!dev) if (dev && is_namespace_pmem(dev)) {
return &uuid_null;
if (is_namespace_pmem(dev)) {
struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev); struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
return nspm->uuid; return nspm->uuid;
} else }
return &uuid_null; return &uuid_null;
} }
EXPORT_SYMBOL(nd_dev_to_uuid); EXPORT_SYMBOL(nd_dev_to_uuid);