1 files changed, 2 insertions, 20 deletions

diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index 673728add60b..82c57069415f 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -59,8 +59,6 @@ struct cfcnfg *get_cfcnfg(struct net *net)
 {
         struct caif_net *caifn;
         caifn = net_generic(net, caif_net_id);
-        if (!caifn)
-                return NULL;
         return caifn->cfg;
 }
 EXPORT_SYMBOL(get_cfcnfg);
@@ -69,8 +67,6 @@ static struct caif_device_entry_list *caif_device_list(struct net *net)
 {
         struct caif_net *caifn;
         caifn = net_generic(net, caif_net_id);
-        if (!caifn)
-                return NULL;
         return &caifn->caifdevs;
 }
 
@@ -99,8 +95,6 @@ static struct caif_device_entry *caif_device_alloc(struct net_device *dev)
         struct caif_device_entry *caifd;
 
         caifdevs = caif_device_list(dev_net(dev));
-        if (!caifdevs)
-                return NULL;
 
         caifd = kzalloc(sizeof(*caifd), GFP_KERNEL);
         if (!caifd)
@@ -120,8 +114,6 @@ static struct caif_device_entry *caif_get(struct net_device *dev)
         struct caif_device_entry_list *caifdevs =
             caif_device_list(dev_net(dev));
         struct caif_device_entry *caifd;
-        if (!caifdevs)
-                return NULL;
 
         list_for_each_entry_rcu(caifd, &caifdevs->list, list) {
                 if (caifd->netdev == dev)
@@ -321,8 +313,6 @@ void caif_enroll_dev(struct net_device *dev, struct caif_dev_common *caifdev,
         struct caif_device_entry_list *caifdevs;
 
         caifdevs = caif_device_list(dev_net(dev));
-        if (!cfg || !caifdevs)
-                return;
         caifd = caif_device_alloc(dev);
         if (!caifd)
                 return;
@@ -374,8 +364,6 @@ static int caif_device_notify(struct notifier_block *me, unsigned long what,
 
         cfg = get_cfcnfg(dev_net(dev));
         caifdevs = caif_device_list(dev_net(dev));
-        if (!cfg || !caifdevs)
-                return 0;
 
         caifd = caif_get(dev);
         if (caifd == NULL && dev->type != ARPHRD_CAIF)
@@ -507,9 +495,6 @@ static struct notifier_block caif_device_notifier = {
 static int caif_init_net(struct net *net)
 {
         struct caif_net *caifn = net_generic(net, caif_net_id);
-        if (WARN_ON(!caifn))
-                return -EINVAL;
-
         INIT_LIST_HEAD(&caifn->caifdevs.list);
         mutex_init(&caifn->caifdevs.lock);
 
@@ -527,9 +512,6 @@ static void caif_exit_net(struct net *net)
             caif_device_list(net);
         struct cfcnfg *cfg =  get_cfcnfg(net);
 
-        if (!cfg || !caifdevs)
-                return;
-
         rtnl_lock();
         mutex_lock(&caifdevs->lock);
 
@@ -569,7 +551,7 @@ static int __init caif_device_init(void)
 {
         int result;
 
-        result = register_pernet_device(&caif_net_ops);
+        result = register_pernet_subsys(&caif_net_ops);
 
         if (result)
                 return result;
@@ -582,7 +564,7 @@ static int __init caif_device_init(void)
 
 static void __exit caif_device_exit(void)
 {
-        unregister_pernet_device(&caif_net_ops);
+        unregister_pernet_subsys(&caif_net_ops);
         unregister_netdevice_notifier(&caif_device_notifier);
         dev_remove_pack(&caif_packet_type);
 }