[PATCH net-next] net: check return value of rhashtable_init
From: MichelleJin <hidden>
Date: 2021-09-14 16:19:13
Also in:
linux-rdma, linux-wireless
Subsystem:
mac80211, mellanox mlx5 core vpi driver, networking drivers, networking [general], networking [srv6], the rest · Maintainers:
Johannes Berg, Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrea Mayer, Linus Torvalds
Handling errors of rhashtable_init. When rhashtable_init fails, it returns -EINVAL. Signed-off-by: MichelleJin <redacted> --- .../net/ethernet/mellanox/mlx5/core/en/tc_ct.c | 15 ++++++++++++--- net/ipv6/ila/ila_xlat.c | 4 +++- net/ipv6/seg6_hmac.c | 6 +++++- net/mac80211/mesh_pathtbl.c | 3 ++- 4 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
index 6c949abcd2e1..5ae3b97df10e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c@@ -2127,12 +2127,21 @@ mlx5_tc_ct_init(struct mlx5e_priv *priv, struct mlx5_fs_chains *chains, ct_priv->post_act = post_act; mutex_init(&ct_priv->control_lock); - rhashtable_init(&ct_priv->zone_ht, &zone_params); - rhashtable_init(&ct_priv->ct_tuples_ht, &tuples_ht_params); - rhashtable_init(&ct_priv->ct_tuples_nat_ht, &tuples_nat_ht_params); + if (rhashtable_init(&ct_priv->zone_ht, &zone_params)) + goto err_ct_zone_ht; + if (rhashtable_init(&ct_priv->ct_tuples_ht, &tuples_ht_params)) + goto err_ct_tuples_ht; + if (rhashtable_init(&ct_priv->ct_tuples_nat_ht, &tuples_nat_ht_params)) + goto err_ct_tuples_nat_ht; return ct_priv; +err_ct_tuples_nat_ht: + rhashtable_destroy(&ct_priv->ct_tuples_nat_ht); +err_ct_tuples_ht: + rhashtable_destroy(&ct_priv->ct_tuples_ht); +err_ct_zone_ht: + rhashtable_destroy(&ct_priv->zone_ht); err_ct_nat_tbl: mlx5_chains_destroy_global_table(chains, ct_priv->ct); err_ct_tbl:
diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
index a1ac0e3d8c60..481d475353ea 100644
--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c@@ -610,7 +610,9 @@ int ila_xlat_init_net(struct net *net) if (err) return err; - rhashtable_init(&ilan->xlat.rhash_table, &rht_params); + err = rhashtable_init(&ilan->xlat.rhash_table, &rht_params); + if (err) + return err; return 0; }
diff --git a/net/ipv6/seg6_hmac.c b/net/ipv6/seg6_hmac.c
index 687d95dce085..a78554993163 100644
--- a/net/ipv6/seg6_hmac.c
+++ b/net/ipv6/seg6_hmac.c@@ -403,9 +403,13 @@ EXPORT_SYMBOL(seg6_hmac_init); int __net_init seg6_hmac_net_init(struct net *net) { + int err; + struct seg6_pernet_data *sdata = seg6_pernet(net); - rhashtable_init(&sdata->hmac_infos, &rht_params); + err = rhashtable_init(&sdata->hmac_infos, &rht_params); + if (err) + return err; return 0; }
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index efbefcbac3ac..3ef5d6e00410 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c@@ -60,7 +60,8 @@ static struct mesh_table *mesh_table_alloc(void) atomic_set(&newtbl->entries, 0); spin_lock_init(&newtbl->gates_lock); spin_lock_init(&newtbl->walk_lock); - rhashtable_init(&newtbl->rhead, &mesh_rht_params); + if (rhashtable_init(&newtbl->rhead, &mesh_rht_params)) + return NULL; return newtbl; }
--
2.25.1