linux-kernel - [PATCH v2] scsi: ufshcd: fix missing destroy

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Date:   Tue, 10 Nov 2020 15:42:23 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "Qinglang Miao" <miaoqinglang@...wei.com>
Subject: [PATCH v2] scsi: ufshcd: fix missing destroy_workqueue()

Add the missing destroy_workqueue() before return from
ufshcd_init in the error handling case as well as in
ufshcd_remove.

Fixes: 4db7a2360597 ("scsi: ufs: Fix concurrency of error handler and other error recovery paths")
Suggested-by: Avri Altman <Avri.Altman@....com>
Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
---
 v2: consider missing destroy_workqueue ufshcd_remove either.

 drivers/scsi/ufs/ufshcd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b8f573a02713..adbdda4f556b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8906,6 +8906,7 @@ void ufshcd_remove(struct ufs_hba *hba)
 	blk_mq_free_tag_set(&hba->tmf_tag_set);
 	blk_cleanup_queue(hba->cmd_queue);
 	scsi_remove_host(hba->host);
+	destroy_workqueue(hba->eh_wq);
 	/* disable interrupts */
 	ufshcd_disable_intr(hba, hba->intr_mask);
 	ufshcd_hba_stop(hba);
@@ -9206,6 +9207,7 @@ 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);
 out_disable:
 	hba->is_irq_enabled = false;
 	ufshcd_hba_exit(hba);
-- 
2.23.0