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[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>
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parent
187b5188a7
commit
fea86ad812
1 changed files with 11 additions and 17 deletions
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@ -980,8 +980,7 @@ static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
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/* only used from updater-side */
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static struct list_head *
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fib_insert_node(struct trie *t, int *err, u32 key, int plen)
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static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
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{
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int pos, newpos;
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struct tnode *tp = NULL, *tn = NULL;
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@ -1043,10 +1042,8 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen)
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li = leaf_info_new(plen);
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if (!li) {
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*err = -ENOMEM;
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goto done;
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}
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if (!li)
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return NULL;
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fa_head = &li->falh;
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insert_leaf_info(&l->list, li);
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@ -1055,18 +1052,15 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen)
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t->size++;
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l = leaf_new();
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if (!l) {
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*err = -ENOMEM;
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goto done;
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}
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if (!l)
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return NULL;
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l->key = key;
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li = leaf_info_new(plen);
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if (!li) {
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tnode_free((struct tnode *) l);
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*err = -ENOMEM;
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goto done;
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return NULL;
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}
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fa_head = &li->falh;
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@ -1102,8 +1096,7 @@ fib_insert_node(struct trie *t, int *err, u32 key, int plen)
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if (!tn) {
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free_leaf_info(li);
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tnode_free((struct tnode *) l);
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*err = -ENOMEM;
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goto done;
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return NULL;
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}
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node_set_parent((struct node *)tn, tp);
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@ -1262,10 +1255,11 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
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*/
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if (!fa_head) {
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err = 0;
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fa_head = fib_insert_node(t, &err, key, plen);
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if (err)
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fa_head = fib_insert_node(t, key, plen);
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if (unlikely(!fa_head)) {
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err = -ENOMEM;
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goto out_free_new_fa;
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}
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}
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list_add_tail_rcu(&new_fa->fa_list,
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