linux-kernel - RE: [PATCH] scsi: fnic: unlock on error path in fnic

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Date: Fri, 12 Jan 2024 02:14:32 +0000
From: "Karan Tilak Kumar (kartilak)" <kartilak@...co.com>
To: Dan Carpenter <dan.carpenter@...aro.org>
CC: "Satish Kharat (satishkh)" <satishkh@...co.com>,
        "Sesidhar Baddela
 (sebaddel)" <sebaddel@...co.com>,
        "James E.J. Bottomley"
	<jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Arulprabhu Ponnusamy (arulponn)" <arulponn@...co.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: RE: [PATCH] scsi: fnic: unlock on error path in fnic_queuecommand()

On Wednesday, January 10, 2024 10:42 AM, Dan Carpenter <dan.carpenter@...aro.org> wrote:
>
> Call spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags) before
> returning.
>
> Fixes: c81df08cd294 ("scsi: fnic: Add support for multiqueue (MQ) in fnic driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
> ---
> drivers/scsi/fnic/fnic_scsi.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
> index 4d6db4509e75..8d7fc5284293 100644
> --- a/drivers/scsi/fnic/fnic_scsi.c
> +++ b/drivers/scsi/fnic/fnic_scsi.c
> @@ -546,6 +546,7 @@ int fnic_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *sc)
> if (fnic->sw_copy_wq[hwq].io_req_table[blk_mq_unique_tag_to_tag(mqtag)] != NULL) {
> WARN(1, "fnic<%d>: %s: hwq: %d tag 0x%x already exists\n",
> fnic->fnic_num, __func__, hwq, blk_mq_unique_tag_to_tag(mqtag));
> +             spin_unlock_irqrestore(&fnic->wq_copy_lock[hwq], flags);
> return SCSI_MLQUEUE_HOST_BUSY;
> }
>
> --
> 2.42.0
>
>

Thanks for your change, Dan.
Looks good to me.

Reviewed-by: Karan Tilak Kumar <kartilak@...co.com>

Regards,
Karan