netfilter: nft_flow_offload: fix underflow in flowtable reference cou…

…nter The .deactivate and .activate interfaces already deal with the reference counter. Otherwise, this results in spurious "Device is busy" errors. Fixes: a3c90f7 ("netfilter: nf_tables: flow offload expression") Signed-off-by: wenxu <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
vieko · Jan 5, 2020 · 8ca7960 · 8ca7960
1 parent 1b78957
commit 8ca7960
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
@@ -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);
 }