linux-kernel - Re: [PATCH net-next v23 03/13] netdev: support binding dma-buf to netdevice

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Message-ID: <e6df00ec-2c52-489e-a510-b69db7e9dbf9@linux.dev>
Date: Thu, 29 Aug 2024 22:24:07 +0100
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Jakub Kicinski <kuba@...nel.org>, Mina Almasry <almasrymina@...gle.com>
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Subject: Re: [PATCH net-next v23 03/13] netdev: support binding dma-buf to
 netdevice

On 29/08/2024 22:08, Jakub Kicinski wrote:
> On Thu, 29 Aug 2024 06:01:16 +0000 Mina Almasry wrote:
>> +	err = genlmsg_reply(rsp, info);
>> +	if (err)
>> +		goto err_unbind;
>> +
>>   	return 0;
>> +
>> +err_unbind:
> 
> rtnl_lock()

There are 2 places with goto err_unbind, and one is under the lock,
additional label (or rearrange of the last check) is needed..

>> +	net_devmem_unbind_dmabuf(binding);
>> +err_unlock:
>> +	rtnl_unlock();