linux-kernel - RE: [PATCH] scsi: ufshcd: fix missing destroy_workqueue() on error in ufshcd

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Message-ID: <DM6PR04MB6575DEC0E343A01B1A4D275AFCEA0@DM6PR04MB6575.namprd04.prod.outlook.com>
Date:   Mon, 9 Nov 2020 09:40:19 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Qinglang Miao <miaoqinglang@...wei.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
CC:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] scsi: ufshcd: fix missing destroy_workqueue() on error in
 ufshcd_init

> 
> Add the missing destroy_workqueue() before return from
> ufshcd_init in the error handling case. It seems that
> exit_gating is an appropriate place.
> 
> Fixes: 4db7a2360597 ("scsi: ufs: Fix concurrency of error handler and other
> error recovery paths")
> Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
> ---
>  drivers/scsi/ufs/ufshcd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index b8f573a02713..9eaa0eaca374 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -9206,6 +9206,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem
> *mmio_base, unsigned int irq)
>  exit_gating:
>         ufshcd_exit_clk_scaling(hba);
>         ufshcd_exit_clk_gating(hba);
> +       destroy_workqueue(hba->eh_wq);
Maybe also in ufshcd_remove?