libceph: use mon_client.c/put_generic_request() more

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 02e105c..2b3cf05 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -610,7 +610,7 @@
 	err = do_generic_request(monc, req);
 
 out:
-	kref_put(&req->kref, release_generic_request);
+	put_generic_request(req);
 	return err;
 }
 EXPORT_SYMBOL(ceph_monc_do_statfs);
@@ -699,7 +699,7 @@
 
 	mutex_unlock(&monc->mutex);
 out:
-	kref_put(&req->kref, release_generic_request);
+	put_generic_request(req);
 	return err;
 }
 EXPORT_SYMBOL(ceph_monc_do_get_version);