Commit 8ca79606 authored Dec 20, 2019 by wenxu Committed by Pablo Neira Ayuso Jan 05, 2020

netfilter: nft_flow_offload: fix underflow in flowtable reference counter



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

Fixes: a3c90f7a ("netfilter: nf_tables: flow offload expression")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

parent 1b789577

net/netfilter/nft_flow_offload.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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);
		}

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