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netfilter: nft_flow_offload: fix underflow in flowtable reference counter

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The .deactivate and .activate interfaces already deal with the reference
counter. Otherwise, this results in spurious "Device is busy" errors.

Fixes: a3c90f7a23 ("netfilter: nf_tables: flow offload expression")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
wenxu 2019-12-20 17:08:46 +08:00 committed by Pablo Neira Ayuso
parent 1b789577f6
commit 8ca79606cd
1 changed files with 0 additions and 3 deletions
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3
net/netfilter/nft_flow_offload.c
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@ -200,9 +200,6 @@ static void nft_flow_offload_activate(const struct nft_ctx *ctx,
static void nft_flow_offload_destroy(const struct nft_ctx *ctx,
const struct nft_expr *expr)
{
struct nft_flow_offload *priv = nft_expr_priv(expr);
priv->flowtable->use--;
nf_ct_netns_put(ctx->net, ctx->family);
}