When we fail to modify a rule, we incorrectly release the idr handle of the unmodified old rule.
Fix that by checking if we need to release it. Fixes: fe2502e49b58 ("net_sched: remove cls_flower idr on failure") Reported-by: Vlad Buslov <vla...@mellanox.com> Reviewed-by: Roi Dayan <r...@mellanox.com> Acked-by: Jiri Pirko <j...@mellanox.com> Signed-off-by: Paul Blakey <pa...@mellanox.com> --- net/sched/cls_flower.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index d964e60..c79f6e7 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -977,7 +977,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb, return 0; errout_idr: - if (fnew->handle) + if (!fold) idr_remove(&head->handle_idr, fnew->handle); errout: tcf_exts_destroy(&fnew->exts); -- 2.7.4