linux-kernel - [PATCH 4/4] scsi: ufs: core: Use reg

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Message-Id: <20241021120313.493371-5-avri.altman@wdc.com>
Date: Mon, 21 Oct 2024 15:03:13 +0300
From: Avri Altman <avri.altman@....com>
To: "Martin K . Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bart Van Assche <bvanassche@....org>,
	Avri Altman <avri.altman@....com>
Subject: [PATCH 4/4] scsi: ufs: core: Use reg_lock to protect HCE register

Use the host register lock to serialize access to the Host Controller
Enable (HCE) register as well, instead of the host_lock.

Signed-off-by: Avri Altman <avri.altman@....com>
---
 drivers/ufs/core/ufshcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 4eee737a4fd5..3cc8ffc6929f 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4795,9 +4795,9 @@ void ufshcd_hba_stop(struct ufs_hba *hba)
 	 * Obtain the host lock to prevent that the controller is disabled
 	 * while the UFS interrupt handler is active on another CPU.
 	 */
-	spin_lock_irqsave(hba->host->host_lock, flags);
+	spin_lock_irqsave(&hba->reg_lock, flags);
 	ufshcd_writel(hba, CONTROLLER_DISABLE,  REG_CONTROLLER_ENABLE);
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
+	spin_unlock_irqrestore(&hba->reg_lock, flags);
 
 	err = ufshcd_wait_for_register(hba, REG_CONTROLLER_ENABLE,
 					CONTROLLER_ENABLE, CONTROLLER_DISABLE,
-- 
2.25.1