diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0b06223f5714ae..120831428ec6f4 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1185,12 +1185,14 @@ static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba)
 	 * clock scaling is in progress
 	 */
 	ufshcd_scsi_block_requests(hba);
+	mutex_lock(&hba->wb_mutex);
 	down_write(&hba->clk_scaling_lock);
 
 	if (!hba->clk_scaling.is_allowed ||
 	    ufshcd_wait_for_doorbell_clr(hba, DOORBELL_CLR_TOUT_US)) {
 		ret = -EBUSY;
 		up_write(&hba->clk_scaling_lock);
+		mutex_unlock(&hba->wb_mutex);
 		ufshcd_scsi_unblock_requests(hba);
 		goto out;
 	}
@@ -1202,12 +1204,15 @@ static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba)
 	return ret;
 }
 
-static void ufshcd_clock_scaling_unprepare(struct ufs_hba *hba, bool writelock)
+static void ufshcd_clock_scaling_unprepare(struct ufs_hba *hba, int err, bool scale_up)
 {
-	if (writelock)
-		up_write(&hba->clk_scaling_lock);
-	else
-		up_read(&hba->clk_scaling_lock);
+	up_write(&hba->clk_scaling_lock);
+
+	/* Enable Write Booster if we have scaled up else disable it */
+	ufshcd_wb_toggle(hba, scale_up);
+
+	mutex_unlock(&hba->wb_mutex);
+
 	ufshcd_scsi_unblock_requests(hba);
 	ufshcd_release(hba);
 }
@@ -1224,7 +1229,6 @@ static void ufshcd_clock_scaling_unprepare(struct ufs_hba *hba, bool writelock)
 static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 {
 	int ret = 0;
-	bool is_writelock = true;
 
 	ret = ufshcd_clock_scaling_prepare(hba);
 	if (ret)
@@ -1253,13 +1257,8 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 		}
 	}
 
-	/* Enable Write Booster if we have scaled up else disable it */
-	downgrade_write(&hba->clk_scaling_lock);
-	is_writelock = false;
-	ufshcd_wb_toggle(hba, scale_up);
-
 out_unprepare:
-	ufshcd_clock_scaling_unprepare(hba, is_writelock);
+	ufshcd_clock_scaling_unprepare(hba, ret, scale_up);
 	return ret;
 }
 
@@ -5919,9 +5918,11 @@ static void ufshcd_force_error_recovery(struct ufs_hba *hba)
 
 static void ufshcd_clk_scaling_allow(struct ufs_hba *hba, bool allow)
 {
+	mutex_lock(&hba->wb_mutex);
 	down_write(&hba->clk_scaling_lock);
 	hba->clk_scaling.is_allowed = allow;
 	up_write(&hba->clk_scaling_lock);
+	mutex_unlock(&hba->wb_mutex);
 }
 
 static void ufshcd_clk_scaling_suspend(struct ufs_hba *hba, bool suspend)
@@ -9480,6 +9481,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Initialize mutex for exception event control */
 	mutex_init(&hba->ee_ctrl_mutex);
 
+	mutex_init(&hba->wb_mutex);
 	init_rwsem(&hba->clk_scaling_lock);
 
 	ufshcd_init_clk_gating(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index d470a52ff24c36..c8513cc6c2bdd2 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -763,6 +763,7 @@ struct ufs_hba_monitor {
  * @urgent_bkops_lvl: keeps track of urgent bkops level for device
  * @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
  *  device is known or not.
+ * @wb_mutex: used to serialize devfreq and sysfs write booster toggling
  * @scsi_block_reqs_cnt: reference counting for scsi block requests
  * @crypto_capabilities: Content of crypto capabilities register (0x100)
  * @crypto_cap_array: Array of crypto capabilities
@@ -892,6 +893,7 @@ struct ufs_hba {
 	enum bkops_status urgent_bkops_lvl;
 	bool is_urgent_bkops_lvl_checked;
 
+	struct mutex wb_mutex;
 	struct rw_semaphore clk_scaling_lock;
 	unsigned char desc_size[QUERY_DESC_IDN_MAX];
 	atomic_t scsi_block_reqs_cnt;