diff options
Diffstat (limited to 'net/sched/cls_api.c')
| -rw-r--r-- | net/sched/cls_api.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 89fbb35bc666..39da0c5801c9 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -220,7 +220,8 @@ static void tcf_chain_destroy(struct tcf_chain *chain) kfree(chain); } -struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index) +struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index, + bool create) { struct tcf_chain *chain; @@ -230,7 +231,10 @@ struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index) return chain; } } - return tcf_chain_create(block, chain_index); + if (create) + return tcf_chain_create(block, chain_index); + else + return NULL; } EXPORT_SYMBOL(tcf_chain_get); @@ -511,9 +515,10 @@ replay: err = -EINVAL; goto errout; } - chain = tcf_chain_get(block, chain_index); + chain = tcf_chain_get(block, chain_index, + n->nlmsg_type == RTM_NEWTFILTER); if (!chain) { - err = -ENOMEM; + err = n->nlmsg_type == RTM_NEWTFILTER ? -ENOMEM : -EINVAL; goto errout; } |