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Diffstat (limited to 'ipc/util.c')
-rw-r--r--ipc/util.c23
1 files changed, 8 insertions, 15 deletions
diff --git a/ipc/util.c b/ipc/util.c
index bd1863b6ed39..7c1387c9510d 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -126,7 +126,6 @@ int ipc_init_ids(struct ipc_ids *ids)
if (err)
return err;
idr_init(&ids->ipcs_idr);
- ids->tables_initialized = true;
ids->max_id = -1;
#ifdef CONFIG_CHECKPOINT_RESTORE
ids->next_id = -1;
@@ -179,19 +178,16 @@ void __init ipc_init_proc_interface(const char *path, const char *header,
*/
static struct kern_ipc_perm *ipc_findkey(struct ipc_ids *ids, key_t key)
{
- struct kern_ipc_perm *ipcp = NULL;
+ struct kern_ipc_perm *ipcp;
- if (likely(ids->tables_initialized))
- ipcp = rhashtable_lookup_fast(&ids->key_ht, &key,
+ ipcp = rhashtable_lookup_fast(&ids->key_ht, &key,
ipc_kht_params);
+ if (!ipcp)
+ return NULL;
- if (ipcp) {
- rcu_read_lock();
- ipc_lock_object(ipcp);
- return ipcp;
- }
-
- return NULL;
+ rcu_read_lock();
+ ipc_lock_object(ipcp);
+ return ipcp;
}
/*
@@ -269,7 +265,7 @@ int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int limit)
if (limit > IPCMNI)
limit = IPCMNI;
- if (!ids->tables_initialized || ids->in_use >= limit)
+ if (ids->in_use >= limit)
return -ENOSPC;
idr_preload(GFP_KERNEL);
@@ -578,9 +574,6 @@ struct kern_ipc_perm *ipc_obtain_object_idr(struct ipc_ids *ids, int id)
struct kern_ipc_perm *out;
int lid = ipcid_to_idx(id);
- if (unlikely(!ids->tables_initialized))
- return ERR_PTR(-EINVAL);
-
out = idr_find(&ids->ipcs_idr, lid);
if (!out)
return ERR_PTR(-EINVAL);