Revert "configfs: Allow ->make_item() and ->make_group() to return detailed errors."

This reverts commit 11c3b79218390a139f2d474ee1e983a672d5839a.  The code
will move to PTR_ERR().

Signed-off-by: Joel Becker <joel.becker@oracle.com>

2 files changed, 24 insertions, 38 deletions

diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 443d108211ab..f02ccb34604d 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1489,28 +1489,25 @@ static struct o2hb_heartbeat_group *to_o2hb_heartbeat_group(struct config_group
                 : NULL;
 }
 
-static int o2hb_heartbeat_group_make_item(struct config_group *group,
-                                          const char *name,
-                                          struct config_item **new_item)
+static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *group,
+                                                          const char *name)
 {
         struct o2hb_region *reg = NULL;
-        int ret = 0;
+        struct config_item *ret = NULL;
 
         reg = kzalloc(sizeof(struct o2hb_region), GFP_KERNEL);
-        if (reg == NULL) {
-                ret = -ENOMEM;
-                goto out;
-        }
+        if (reg == NULL)
+                goto out; /* ENOMEM */
 
         config_item_init_type_name(&reg->hr_item, name, &o2hb_region_type);
 
-        *new_item = &reg->hr_item;
+        ret = &reg->hr_item;
 
         spin_lock(&o2hb_live_lock);
         list_add_tail(&reg->hr_all_item, &o2hb_all_regions);
         spin_unlock(&o2hb_live_lock);
 out:
-        if (ret)
+        if (ret == NULL)
                 kfree(reg);
 
         return ret;
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index b364b7052e46..cfdb08b484ed 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -644,32 +644,27 @@ out:
         return ret;
 }
 
-static int o2nm_node_group_make_item(struct config_group *group,
-                                     const char *name,
-                                     struct config_item **new_item)
+static struct config_item *o2nm_node_group_make_item(struct config_group *group,
+                                                     const char *name)
 {
         struct o2nm_node *node = NULL;
-        int ret = 0;
+        struct config_item *ret = NULL;
 
-        if (strlen(name) > O2NM_MAX_NAME_LEN) {
-                ret = -ENAMETOOLONG;
-                goto out;
-        }
+        if (strlen(name) > O2NM_MAX_NAME_LEN)
+                goto out; /* ENAMETOOLONG */
 
         node = kzalloc(sizeof(struct o2nm_node), GFP_KERNEL);
-        if (node == NULL) {
-                ret = -ENOMEM;
-                goto out;
-        }
+        if (node == NULL)
+                goto out; /* ENOMEM */
 
         strcpy(node->nd_name, name); /* use item.ci_namebuf instead? */
         config_item_init_type_name(&node->nd_item, name, &o2nm_node_type);
         spin_lock_init(&node->nd_lock);
 
-        *new_item = &node->nd_item;
+        ret = &node->nd_item;
 
 out:
-        if (ret)
+        if (ret == NULL)
                 kfree(node);
 
         return ret;
@@ -756,31 +751,25 @@ static struct o2nm_cluster_group *to_o2nm_cluster_group(struct config_group *gro
 }
 #endif
 
-static int o2nm_cluster_group_make_group(struct config_group *group,
-                                         const char *name,
-                                         struct config_group **new_group)
+static struct config_group *o2nm_cluster_group_make_group(struct config_group *group,
+                                                          const char *name)
 {
         struct o2nm_cluster *cluster = NULL;
         struct o2nm_node_group *ns = NULL;
-        struct config_group *o2hb_group = NULL;
+        struct config_group *o2hb_group = NULL, *ret = NULL;
         void *defs = NULL;
-        int ret = 0;
 
         /* this runs under the parent dir's i_mutex; there can be only
          * one caller in here at a time */
-        if (o2nm_single_cluster) {
-                ret = -ENOSPC;
-                goto out;
-        }
+        if (o2nm_single_cluster)
+                goto out; /* ENOSPC */
 
         cluster = kzalloc(sizeof(struct o2nm_cluster), GFP_KERNEL);
         ns = kzalloc(sizeof(struct o2nm_node_group), GFP_KERNEL);
         defs = kcalloc(3, sizeof(struct config_group *), GFP_KERNEL);
         o2hb_group = o2hb_alloc_hb_set();
-        if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL) {
-                ret = -ENOMEM;
+        if (cluster == NULL || ns == NULL || o2hb_group == NULL || defs == NULL)
                 goto out;
-        }
 
         config_group_init_type_name(&cluster->cl_group, name,
                                     &o2nm_cluster_type);
@@ -797,11 +786,11 @@ static int o2nm_cluster_group_make_group(struct config_group *group,
         cluster->cl_idle_timeout_ms    = O2NET_IDLE_TIMEOUT_MS_DEFAULT;
         cluster->cl_keepalive_delay_ms = O2NET_KEEPALIVE_DELAY_MS_DEFAULT;
 
-        *new_group = &cluster->cl_group;
+        ret = &cluster->cl_group;
         o2nm_single_cluster = cluster;
 
 out:
-        if (ret) {
+        if (ret == NULL) {
                 kfree(cluster);
                 kfree(ns);
                 o2hb_free_hb_set(o2hb_group);