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Diffstat (limited to 'fs')
-rw-r--r--fs/configfs/dir.c28
-rw-r--r--fs/dlm/config.c45
-rw-r--r--fs/ocfs2/cluster/heartbeat.c19
-rw-r--r--fs/ocfs2/cluster/nodemanager.c49
-rw-r--r--fs/proc/proc_tty.c48
5 files changed, 55 insertions, 134 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 0e64312a084..179589be063 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1027,9 +1027,10 @@ EXPORT_SYMBOL(configfs_undepend_item);
static int configfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
- int ret, module_got = 0;
- struct config_group *group;
- struct config_item *item;
+ int ret = 0;
+ int module_got = 0;
+ struct config_group *group = NULL;
+ struct config_item *item = NULL;
struct config_item *parent_item;
struct configfs_subsystem *subsys;
struct configfs_dirent *sd;
@@ -1070,25 +1071,30 @@ static int configfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
snprintf(name, dentry->d_name.len + 1, "%s", dentry->d_name.name);
mutex_lock(&subsys->su_mutex);
- group = NULL;
- item = NULL;
if (type->ct_group_ops->make_group) {
- ret = type->ct_group_ops->make_group(to_config_group(parent_item), name, &group);
- if (!ret) {
+ group = type->ct_group_ops->make_group(to_config_group(parent_item), name);
+ if (!group)
+ group = ERR_PTR(-ENOMEM);
+ if (!IS_ERR(group)) {
link_group(to_config_group(parent_item), group);
item = &group->cg_item;
- }
+ } else
+ ret = PTR_ERR(group);
} else {
- ret = type->ct_group_ops->make_item(to_config_group(parent_item), name, &item);
- if (!ret)
+ item = type->ct_group_ops->make_item(to_config_group(parent_item), name);
+ if (!item)
+ item = ERR_PTR(-ENOMEM);
+ if (!IS_ERR(item))
link_obj(parent_item, item);
+ else
+ ret = PTR_ERR(item);
}
mutex_unlock(&subsys->su_mutex);
kfree(name);
if (ret) {
/*
- * If ret != 0, then link_obj() was never called.
+ * If item == NULL, then link_obj() was never called.
* There are no extra references to clean up.
*/
goto out_put;
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 492d8caaaf2..c4e7d721bd8 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -41,20 +41,16 @@ struct comm;
struct nodes;
struct node;
-static int make_cluster(struct config_group *, const char *,
- struct config_group **);
+static struct config_group *make_cluster(struct config_group *, const char *);
static void drop_cluster(struct config_group *, struct config_item *);
static void release_cluster(struct config_item *);
-static int make_space(struct config_group *, const char *,
- struct config_group **);
+static struct config_group *make_space(struct config_group *, const char *);
static void drop_space(struct config_group *, struct config_item *);
static void release_space(struct config_item *);
-static int make_comm(struct config_group *, const char *,
- struct config_item **);
+static struct config_item *make_comm(struct config_group *, const char *);
static void drop_comm(struct config_group *, struct config_item *);
static void release_comm(struct config_item *);
-static int make_node(struct config_group *, const char *,
- struct config_item **);
+static struct config_item *make_node(struct config_group *, const char *);
static void drop_node(struct config_group *, struct config_item *);
static void release_node(struct config_item *);
@@ -396,8 +392,8 @@ static struct node *to_node(struct config_item *i)
return i ? container_of(i, struct node, item) : NULL;
}
-static int make_cluster(struct config_group *g, const char *name,
- struct config_group **new_g)
+static struct config_group *make_cluster(struct config_group *g,
+ const char *name)
{
struct cluster *cl = NULL;
struct spaces *sps = NULL;
@@ -435,15 +431,14 @@ static int make_cluster(struct config_group *g, const char *name,
space_list = &sps->ss_group;
comm_list = &cms->cs_group;
- *new_g = &cl->group;
- return 0;
+ return &cl->group;
fail:
kfree(cl);
kfree(gps);
kfree(sps);
kfree(cms);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
static void drop_cluster(struct config_group *g, struct config_item *i)
@@ -471,8 +466,7 @@ static void release_cluster(struct config_item *i)
kfree(cl);
}
-static int make_space(struct config_group *g, const char *name,
- struct config_group **new_g)
+static struct config_group *make_space(struct config_group *g, const char *name)
{
struct space *sp = NULL;
struct nodes *nds = NULL;
@@ -495,14 +489,13 @@ static int make_space(struct config_group *g, const char *name,
INIT_LIST_HEAD(&sp->members);
mutex_init(&sp->members_lock);
sp->members_count = 0;
- *new_g = &sp->group;
- return 0;
+ return &sp->group;
fail:
kfree(sp);
kfree(gps);
kfree(nds);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
static void drop_space(struct config_group *g, struct config_item *i)
@@ -529,21 +522,19 @@ static void release_space(struct config_item *i)
kfree(sp);
}
-static int make_comm(struct config_group *g, const char *name,
- struct config_item **new_i)
+static struct config_item *make_comm(struct config_group *g, const char *name)
{
struct comm *cm;
cm = kzalloc(sizeof(struct comm), GFP_KERNEL);
if (!cm)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
config_item_init_type_name(&cm->item, name, &comm_type);
cm->nodeid = -1;
cm->local = 0;
cm->addr_count = 0;
- *new_i = &cm->item;
- return 0;
+ return &cm->item;
}
static void drop_comm(struct config_group *g, struct config_item *i)
@@ -563,15 +554,14 @@ static void release_comm(struct config_item *i)
kfree(cm);
}
-static int make_node(struct config_group *g, const char *name,
- struct config_item **new_i)
+static struct config_item *make_node(struct config_group *g, const char *name)
{
struct space *sp = to_space(g->cg_item.ci_parent);
struct node *nd;
nd = kzalloc(sizeof(struct node), GFP_KERNEL);
if (!nd)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
config_item_init_type_name(&nd->item, name, &node_type);
nd->nodeid = -1;
@@ -583,8 +573,7 @@ static int make_node(struct config_group *g, const char *name,
sp->members_count++;
mutex_unlock(&sp->members_lock);
- *new_i = &nd->item;
- return 0;
+ return &nd->item;
}
static void drop_node(struct config_group *g, struct config_item *i)
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 443d108211a..7dce1612553 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -1489,31 +1489,22 @@ 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;
reg = kzalloc(sizeof(struct o2hb_region), GFP_KERNEL);
- if (reg == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ if (reg == NULL)
+ return ERR_PTR(-ENOMEM);
config_item_init_type_name(&reg->hr_item, name, &o2hb_region_type);
- *new_item = &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)
- kfree(reg);
- return ret;
+ return &reg->hr_item;
}
static void o2hb_heartbeat_group_drop_item(struct config_group *group,
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index b364b7052e4..816a3f61330 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -644,35 +644,23 @@ 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;
- if (strlen(name) > O2NM_MAX_NAME_LEN) {
- ret = -ENAMETOOLONG;
- goto out;
- }
+ if (strlen(name) > O2NM_MAX_NAME_LEN)
+ return ERR_PTR(-ENAMETOOLONG);
node = kzalloc(sizeof(struct o2nm_node), GFP_KERNEL);
- if (node == NULL) {
- ret = -ENOMEM;
- goto out;
- }
+ if (node == NULL)
+ return ERR_PTR(-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;
-
-out:
- if (ret)
- kfree(node);
-
- return ret;
+ return &node->nd_item;
}
static void o2nm_node_group_drop_item(struct config_group *group,
@@ -756,31 +744,25 @@ 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)
+ return ERR_PTR(-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);
@@ -797,15 +779,16 @@ 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);
kfree(defs);
+ ret = ERR_PTR(-ENOMEM);
}
return ret;
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index 21f490f5d65..d153946d6d1 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -136,54 +136,6 @@ static const struct file_operations proc_tty_drivers_operations = {
.release = seq_release,
};
-static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos)
-{
- return (*pos < NR_LDISCS) ? pos : NULL;
-}
-
-static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos)
-{
- (*pos)++;
- return (*pos < NR_LDISCS) ? pos : NULL;
-}
-
-static void tty_ldiscs_seq_stop(struct seq_file *m, void *v)
-{
-}
-
-static int tty_ldiscs_seq_show(struct seq_file *m, void *v)
-{
- int i = *(loff_t *)v;
- struct tty_ldisc *ld;
-
- ld = tty_ldisc_get(i);
- if (ld == NULL)
- return 0;
- seq_printf(m, "%-10s %2d\n", ld->name ? ld->name : "???", i);
- tty_ldisc_put(i);
- return 0;
-}
-
-static const struct seq_operations tty_ldiscs_seq_ops = {
- .start = tty_ldiscs_seq_start,
- .next = tty_ldiscs_seq_next,
- .stop = tty_ldiscs_seq_stop,
- .show = tty_ldiscs_seq_show,
-};
-
-static int proc_tty_ldiscs_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &tty_ldiscs_seq_ops);
-}
-
-static const struct file_operations tty_ldiscs_proc_fops = {
- .owner = THIS_MODULE,
- .open = proc_tty_ldiscs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
/*
* This function is called by tty_register_driver() to handle
* registering the driver's /proc handler into /proc/tty/driver/<foo>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 22:38:54 +0000