libnvdimm: cleanup nvdimm_namespace_common_probe(), kill 'host'

The 'host' variable can be killed as it is always the same as the passed
in device.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 7 insertions, 12 deletions

diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index f5cb88601359..e5ad5162bf34 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1379,21 +1379,16 @@ struct nd_namespace_common *nvdimm_namespace_common_probe(struct device *dev)
 {
         struct nd_btt *nd_btt = is_nd_btt(dev) ? to_nd_btt(dev) : NULL;
         struct nd_pfn *nd_pfn = is_nd_pfn(dev) ? to_nd_pfn(dev) : NULL;
-        struct nd_namespace_common *ndns;
+        struct nd_namespace_common *ndns = NULL;
         resource_size_t size;
 
         if (nd_btt || nd_pfn) {
-                struct device *host = NULL;
-
-                if (nd_btt) {
-                        host = &nd_btt->dev;
+                if (nd_btt)
                         ndns = nd_btt->ndns;
-                } else if (nd_pfn) {
-                        host = &nd_pfn->dev;
+                else if (nd_pfn)
                         ndns = nd_pfn->ndns;
-                }
 
-                if (!ndns || !host)
+                if (!ndns)
                         return ERR_PTR(-ENODEV);
 
                 /*
@@ -1404,12 +1399,12 @@ struct nd_namespace_common *nvdimm_namespace_common_probe(struct device *dev)
                 device_unlock(&ndns->dev);
                 if (ndns->dev.driver) {
                         dev_dbg(&ndns->dev, "is active, can't bind %s\n",
-                                        dev_name(host));
+                                        dev_name(dev));
                         return ERR_PTR(-EBUSY);
                 }
-                if (dev_WARN_ONCE(&ndns->dev, ndns->claim != host,
+                if (dev_WARN_ONCE(&ndns->dev, ndns->claim != dev,
                                         "host (%s) vs claim (%s) mismatch\n",
-                                        dev_name(host),
+                                        dev_name(dev),
                                         dev_name(ndns->claim)))
                         return ERR_PTR(-ENXIO);
         } else {