From: hgchu <hg.chu@samsung.com>
Date: Fri, 12 Jan 2018 03:58:56 +0000 (+0900)
Subject: scsi: ufs: guarantee link's active state for device management
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c7cf4cc2cb42cf68b9bbfef3f51318706436b9a8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

scsi: ufs: guarantee link's active state for device management

Change-Id: I5655825ab08281495abd0051a4c73799a32cee3d
Signed-off-by: hgchu <hg.chu@samsung.com>
---

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2b6ac1148e5a..5122b6bd95ff 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2623,7 +2623,8 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 	unsigned long flags;
 
 	if (!ufshcd_is_link_active(hba)) {
-
+		flush_work(&hba->clk_gating.ungate_work);
+		if (!ufshcd_is_link_active(hba))
 			return -EPERM;
 	}
 	down_read(&hba->clk_scaling_lock);