From f9562fa4a5750d097f4468c0a7fc9a4e0d2dfdc3 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Sat, 28 Jul 2018 18:35:15 +0800 Subject: cls_bpf: Use kmemdup instead of duplicating it in cls_bpf_prog_from_ops Replace calls to kmalloc followed by a memcpy with a direct call to kmemdup. Signed-off-by: YueHaibing Acked-by: Daniel Borkmann Signed-off-by: David S. Miller --- net/sched/cls_bpf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'net/sched/cls_bpf.c') diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 66e0ac9811f9..fa6fe2fe0f32 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -349,12 +349,10 @@ static int cls_bpf_prog_from_ops(struct nlattr **tb, struct cls_bpf_prog *prog) if (bpf_size != nla_len(tb[TCA_BPF_OPS])) return -EINVAL; - bpf_ops = kzalloc(bpf_size, GFP_KERNEL); + bpf_ops = kmemdup(nla_data(tb[TCA_BPF_OPS]), bpf_size, GFP_KERNEL); if (bpf_ops == NULL) return -ENOMEM; - memcpy(bpf_ops, nla_data(tb[TCA_BPF_OPS]), bpf_size); - fprog_tmp.len = bpf_num_ops; fprog_tmp.filter = bpf_ops; -- cgit v1.2.3