diff options
| author | Yan Cangang <nalanzeyu@gmail.com> | 2022-11-20 13:52:59 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-11-22 20:16:45 -0800 |
| commit | 603ea5e7ffa73c7fac07d8713d97285990695213 (patch) | |
| tree | 445cbcddac0a83d19c0e187ba2fafb6735d2efef /drivers/net/ethernet/mediatek/mtk_ppe.c | |
| parent | 8110437e59616293228cd781c486d8495a61e36a (diff) | |
net: ethernet: mtk_eth_soc: fix memory leak in error path
In mtk_ppe_init(), when dmam_alloc_coherent() or devm_kzalloc() failed,
the rhashtable ppe->l2_flows isn't destroyed. Fix it.
In mtk_probe(), when mtk_ppe_init() or mtk_eth_offload_init() or
register_netdev() failed, have the same problem. Fix it.
Fixes: 33fc42de3327 ("net: ethernet: mtk_eth_soc: support creating mac address based offload entries")
Signed-off-by: Yan Cangang <nalanzeyu@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_ppe.c')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_ppe.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c index 2d8ca99f2467..784ecb2dc9fb 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c @@ -737,7 +737,7 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, MTK_PPE_ENTRIES * soc->foe_entry_size, &ppe->foe_phys, GFP_KERNEL); if (!foe) - return NULL; + goto err_free_l2_flows; ppe->foe_table = foe; @@ -745,11 +745,26 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, sizeof(*ppe->foe_flow); ppe->foe_flow = devm_kzalloc(dev, foe_flow_size, GFP_KERNEL); if (!ppe->foe_flow) - return NULL; + goto err_free_l2_flows; mtk_ppe_debugfs_init(ppe, index); return ppe; + +err_free_l2_flows: + rhashtable_destroy(&ppe->l2_flows); + return NULL; +} + +void mtk_ppe_deinit(struct mtk_eth *eth) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(eth->ppe); i++) { + if (!eth->ppe[i]) + return; + rhashtable_destroy(ð->ppe[i]->l2_flows); + } } static void mtk_ppe_init_foe_table(struct mtk_ppe *ppe) |