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authorFelix Fietkau <nbd@nbd.name>2023-03-30 15:08:38 +0300
committerJakub Kicinski <kuba@kernel.org>2023-03-30 21:44:59 +0300
commit8c1cb87c2a5c29da416848451a687473f379611c (patch)
treedf573685f46a1ce8c29ffa3e841f645bc04dffee /drivers
parent2960a2d33b02345c6d710251206053678f92246b (diff)
downloadlinux-8c1cb87c2a5c29da416848451a687473f379611c.tar.xz
net: ethernet: mtk_eth_soc: fix flow block refcounting logic
Since we call flow_block_cb_decref on FLOW_BLOCK_UNBIND, we also need to call flow_block_cb_incref for a newly allocated cb. Also fix the accidentally inverted refcount check on unbind. Fixes: 502e84e2382d ("net: ethernet: mtk_eth_soc: add flow offloading support") Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20230330120840.52079-1-nbd@nbd.name Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mediatek/mtk_ppe_offload.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
index 81afd5ee3fbf..161751bb36c9 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -576,6 +576,7 @@ mtk_eth_setup_tc_block(struct net_device *dev, struct flow_block_offload *f)
if (IS_ERR(block_cb))
return PTR_ERR(block_cb);
+ flow_block_cb_incref(block_cb);
flow_block_cb_add(block_cb, f);
list_add_tail(&block_cb->driver_list, &block_cb_list);
return 0;
@@ -584,7 +585,7 @@ mtk_eth_setup_tc_block(struct net_device *dev, struct flow_block_offload *f)
if (!block_cb)
return -ENOENT;
- if (flow_block_cb_decref(block_cb)) {
+ if (!flow_block_cb_decref(block_cb)) {
flow_block_cb_remove(block_cb, f);
list_del(&block_cb->driver_list);
}