Commit 03e1d28e authored Dec 24, 2019 by Stanley Chu Committed by Martin K. Petersen Jan 02, 2020

scsi: ufs: unify scsi_block_requests usage

Currently UFS driver has ufshcd_scsi_block_requests() with reference
counter mechanism to avoid possible racing of blocking and unblocking
requests flow. Unify all users in UFS driver to use the same function.

Link: https://lore.kernel.org/r/1577192466-20762-2-git-send-email-stanley.chu@mediatek.com

Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent dbfc5626

drivers/scsi/ufs/ufshcd.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -5159,7 +5159,7 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
		hba = container_of(work, struct ufs_hba, eeh_work);

		pm_runtime_get_sync(hba->dev);
		scsi_block_requests(hba->host);
		ufshcd_scsi_block_requests(hba);
		err = ufshcd_get_ee_status(hba, &status);
		if (err) {
		dev_err(hba->dev, "%s: failed to get exception status %d\n",
		@@ -5173,7 +5173,7 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
		ufshcd_bkops_exception_event_handler(hba);

		out:
		scsi_unblock_requests(hba->host);
		ufshcd_scsi_unblock_requests(hba);
		pm_runtime_put_sync(hba->dev);
		return;
		}