diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 49e5fa8795ae1dfef8a346460562ed808129ad3c..f59adf8a4cd780738187d5a50622f1ff9d50a20b 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -220,15 +220,21 @@ static u32 cls_bpf_grab_new_handle(struct tcf_proto *tp, struct cls_bpf_head *head) { unsigned int i = 0x80000000; + u32 handle; do { if (++head->hgen == 0x7FFFFFFF) head->hgen = 1; } while (--i > 0 && cls_bpf_get(tp, head->hgen)); - if (i == 0) + + if (unlikely(i == 0)) { pr_err("Insufficient number of handles\n"); + handle = 0; + } else { + handle = head->hgen; + } - return i; + return handle; } static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,