linux-kernel - Re: [PATCH v3 17/18] nvmet-fc: put ref when assoc->del

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Message-ID: <7c3f8b96-2629-4bac-b089-96437355ac91@suse.de>
Date: Tue, 18 Mar 2025 12:20:05 +0100
From: Hannes Reinecke <hare@...e.de>
To: Daniel Wagner <wagi@...nel.org>, James Smart <james.smart@...adcom.com>,
 Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
 Chaitanya Kulkarni <kch@...dia.com>
Cc: Keith Busch <kbusch@...nel.org>, linux-nvme@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 17/18] nvmet-fc: put ref when assoc->del_work is
 already scheduled

On 3/18/25 11:40, Daniel Wagner wrote:
> Do not leak the tgtport reference when the work is already scheduled.
> 
> Signed-off-by: Daniel Wagner <wagi@...nel.org>
> ---
>   drivers/nvme/target/fc.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
> index 649afce908bbade0a843efc4b8b76105c164b035..e027986e35098acbe5f97dcbcc845b9d46b88923 100644
> --- a/drivers/nvme/target/fc.c
> +++ b/drivers/nvme/target/fc.c
> @@ -1087,7 +1087,8 @@ static void
>   nvmet_fc_schedule_delete_assoc(struct nvmet_fc_tgt_assoc *assoc)
>   {
>   	nvmet_fc_tgtport_get(assoc->tgtport);
> -	queue_work(nvmet_wq, &assoc->del_work);
> +	if (!queue_work(nvmet_wq, &assoc->del_work))
> +		nvmet_fc_tgtport_put(assoc->tgtport);
>   }
>   
>   static bool
> 
Reviewed-by: Hannes Reinecke <hare@...e.de>

cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@...e.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich