[PATCH v6 03/11] scsi: ufs: core: Call ufshcd_add_scsi_host() later

[Bart Van Assche <bvanassche@acm.org>]

Call ufshcd_add_scsi_host() after host controller initialization has
completed. This is safe because no code between the old and new
ufshcd_add_scsi_host() call site depends on the scsi_add_host() call.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ufs/core/ufshcd.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 17c22e880cef..17604397aaba 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10572,10 +10572,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		hba->is_irq_enabled = true;
 	}
 
-	err = ufshcd_add_scsi_host(hba);
-	if (err)
-		goto out_disable;
-
 	/* Reset the attached device */
 	ufshcd_device_reset(hba);
 
@@ -10587,7 +10583,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		dev_err(hba->dev, "Host controller enable failed\n");
 		ufshcd_print_evt_hist(hba);
 		ufshcd_print_host_state(hba);
-		goto free_tmf_queue;
+		goto out_disable;
 	}
 
 	/*
@@ -10622,6 +10618,10 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	 */
 	ufshcd_set_ufs_dev_active(hba);
 
+	err = ufshcd_add_scsi_host(hba);
+	if (err)
+		goto out_disable;
+
 	async_schedule(ufshcd_async_scan, hba);
 	ufs_sysfs_add_nodes(hba->dev);
 
@@ -10629,12 +10629,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	ufshcd_pm_qos_init(hba);
 	return 0;
 
-free_tmf_queue:
-	blk_mq_destroy_queue(hba->tmf_queue);
-	blk_put_queue(hba->tmf_queue);
-	blk_mq_free_tag_set(&hba->tmf_tag_set);
-	if (hba->scsi_host_added)
-		scsi_remove_host(hba->host);
 out_disable:
 	hba->is_irq_enabled = false;
 	ufshcd_hba_exit(hba);