linux-kernel - Re: [PATCH -next v2] scsi: lpfc: add missing destroy_workqueue() on error path in lpfc_sli4_driver_resource

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Date:   Tue, 23 Aug 2022 06:22:42 -0700
From:   James Smart <jsmart2021@...il.com>
To:     Yang Yingliang <yangyingliang@...wei.com>,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
        martin.petersen@...cle.com
Cc:     james.smart@...adcom.com, dick.kennedy@...adcom.com
Subject: Re: [PATCH -next v2] scsi: lpfc: add missing destroy_workqueue() on
 error path in lpfc_sli4_driver_resource_setup()

On 8/22/2022 9:42 PM, Yang Yingliang wrote:
> Add the missing destroy_workqueue() before return from
> lpfc_sli4_driver_resource_setup() in error path.
> 
> Fixes: 3cee98db2610 ("scsi: lpfc: Fix crash on driver unload in wq free")
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
> v2:
>    correct label spelling error
> ---
>   drivers/scsi/lpfc/lpfc_init.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
> index c69c5a0979ec..55a1ad6eed03 100644
> --- a/drivers/scsi/lpfc/lpfc_init.c
> +++ b/drivers/scsi/lpfc/lpfc_init.c
> @@ -8053,7 +8053,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
>   	/* Allocate device driver memory */
>   	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
>   	if (rc)
> -		return -ENOMEM;
> +		goto out_destroy_workqueue;
>   
>   	/* IF Type 2 ports get initialized now. */
>   	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
> @@ -8481,6 +8481,9 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
>   	lpfc_destroy_bootstrap_mbox(phba);
>   out_free_mem:
>   	lpfc_mem_free(phba);
> +out_destroy_workqueue:
> +	destroy_workqueue(phba->wq);
> +	phba->wq = NULL;
>   	return rc;
>   }
>   

Thank You!

Reviewed-by: James Smart <jsmart2021@...il.com>

-- james