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| author | Stephen Hemminger <stephen.hemminger@vyatta.com> | 2008-01-12 20:57:07 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:01:54 -0800 |
| commit | fea86ad8123df0d49188cbc1dd2f48da6ae49d65 (patch) | |
| tree | b1a9b991d0e5eddb264a3cc08f8e4e8647ccad0a | |
| parent | 187b5188a78694fa6608fa1252d5197a7b3ab076 (diff) | |
| download | linux-fea86ad8123df0d49188cbc1dd2f48da6ae49d65.tar.gz linux-fea86ad8123df0d49188cbc1dd2f48da6ae49d65.tar.bz2 linux-fea86ad8123df0d49188cbc1dd2f48da6ae49d65.zip | |
[IPV4] fib_trie: fib_insert_node cleanup
The only error from fib_insert_node is if memory allocation fails, so
instead of passing by reference, just use the convention of returning
NULL.
Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/fib_trie.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index f5c046b517e4..e047de6873bd 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -980,8 +980,7 @@ static struct node *trie_rebalance(struct trie *t, struct tnode *tn) /* only used from updater-side */ -static struct list_head * -fib_insert_node(struct trie *t, int *err, u32 key, int plen) +static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen) { int pos, newpos; struct tnode *tp = NULL, *tn = NULL; @@ -1043,10 +1042,8 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen) li = leaf_info_new(plen); - if (!li) { - *err = -ENOMEM; - goto done; - } + if (!li) + return NULL; fa_head = &li->falh; insert_leaf_info(&l->list, li); @@ -1055,18 +1052,15 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen) t->size++; l = leaf_new(); - if (!l) { - *err = -ENOMEM; - goto done; - } + if (!l) + return NULL; l->key = key; li = leaf_info_new(plen); if (!li) { tnode_free((struct tnode *) l); - *err = -ENOMEM; - goto done; + return NULL; } fa_head = &li->falh; @@ -1102,8 +1096,7 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen) if (!tn) { free_leaf_info(li); tnode_free((struct tnode *) l); - *err = -ENOMEM; - goto done; + return NULL; } node_set_parent((struct node *)tn, tp); @@ -1262,10 +1255,11 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg) */ if (!fa_head) { - err = 0; - fa_head = fib_insert_node(t, &err, key, plen); - if (err) + fa_head = fib_insert_node(t, key, plen); + if (unlikely(!fa_head)) { + err = -ENOMEM; goto out_free_new_fa; + } } list_add_tail_rcu(&new_fa->fa_list, |