diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2018-07-28 18:38:06 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-29 13:20:16 -0700 |
| commit | 3f6bcc5162a1ba4e99e867364919168c1d821308 (patch) | |
| tree | c1ca5d85eedebab28a692756e04d128affe78d07 | |
| parent | f9562fa4a5750d097f4468c0a7fc9a4e0d2dfdc3 (diff) | |
act_bpf: Use kmemdup instead of duplicating it in tcf_bpf_init_from_ops
Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sched/act_bpf.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c index 06f743d8ed41..6203eb075c9a 100644 --- a/net/sched/act_bpf.c +++ b/net/sched/act_bpf.c @@ -196,12 +196,10 @@ static int tcf_bpf_init_from_ops(struct nlattr **tb, struct tcf_bpf_cfg *cfg) if (bpf_size != nla_len(tb[TCA_ACT_BPF_OPS])) return -EINVAL; - bpf_ops = kzalloc(bpf_size, GFP_KERNEL); + bpf_ops = kmemdup(nla_data(tb[TCA_ACT_BPF_OPS]), bpf_size, GFP_KERNEL); if (bpf_ops == NULL) return -ENOMEM; - memcpy(bpf_ops, nla_data(tb[TCA_ACT_BPF_OPS]), bpf_size); - fprog_tmp.len = bpf_num_ops; fprog_tmp.filter = bpf_ops; |