From: Jakub Kicinski <kuba@kernel.org>
To: Stanislav Fomichev <sdf@fomichev.me>
Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com,
pabeni@redhat.com, linux-kernel@vger.kernel.org,
horms@kernel.org, donald.hunter@gmail.com,
michael.chan@broadcom.com, pavan.chebbi@broadcom.com,
andrew+netdev@lunn.ch, jdamato@fastly.com,
xuanzhuo@linux.alibaba.com, almasrymina@google.com,
asml.silence@gmail.com, dw@davidwei.uk
Subject: Re: [PATCH net-next v1 3/4] net: add granular lock for the netdev netlink socket
Date: Fri, 7 Mar 2025 15:34:56 -0800 [thread overview]
Message-ID: <20250307153456.7c698a1a@kernel.org> (raw)
In-Reply-To: <20250307155725.219009-4-sdf@fomichev.me>
On Fri, 7 Mar 2025 07:57:24 -0800 Stanislav Fomichev wrote:
> diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c
> index a219be90c739..8acdeeae24e7 100644
> --- a/net/core/netdev-genl.c
> +++ b/net/core/netdev-genl.c
> @@ -859,6 +859,7 @@ int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info)
> goto err_genlmsg_free;
> }
>
> + mutex_lock(&priv->lock);
> rtnl_lock();
>
> netdev = __dev_get_by_index(genl_info_net(info), ifindex);
> @@ -925,6 +926,7 @@ int netdev_nl_bind_rx_doit(struct sk_buff *skb, struct genl_info *info)
> net_devmem_unbind_dmabuf(binding);
> err_unlock:
> rtnl_unlock();
> + mutex_unlock(&priv->lock);
> err_genlmsg_free:
> nlmsg_free(rsp);
> return err;
I think you're missing an unlock before successful return here no?
next prev parent reply other threads:[~2025-03-07 23:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-07 15:57 [PATCH net-next v1 0/4] net: remove rtnl_lock from the callers of queue APIs Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 1/4] net: create netdev_nl_sock to wrap bindings list Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 2/4] net: protect net_devmem_dmabuf_bindings by new net_devmem_bindings_mutex Stanislav Fomichev
2025-03-07 17:49 ` Jakub Kicinski
2025-03-07 19:36 ` Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 3/4] net: add granular lock for the netdev netlink socket Stanislav Fomichev
2025-03-07 17:50 ` Jakub Kicinski
2025-03-07 19:35 ` Stanislav Fomichev
2025-03-07 23:33 ` Jakub Kicinski
2025-03-07 23:34 ` Jakub Kicinski [this message]
2025-03-07 23:43 ` Stanislav Fomichev
2025-03-09 21:57 ` Mina Almasry
2025-03-10 5:02 ` Stanislav Fomichev
2025-03-10 5:45 ` Mina Almasry
2025-03-07 15:57 ` [PATCH net-next v1 4/4] net: drop rtnl_lock for queue_mgmt operations Stanislav Fomichev
2025-03-07 23:39 ` Jakub Kicinski
2025-03-07 23:50 ` Stanislav Fomichev
2025-03-08 3:22 ` [PATCH net-next v1 0/4] net: remove rtnl_lock from the callers of queue APIs Jakub Kicinski
2025-03-08 3:33 ` Stanislav Fomichev
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