[PATCH v2 14/20] scsi: ufs: Introduce ufshcd_release_scsi_cmd()

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

The only functional change in this patch is that scsi_done() is now called
after ufshcd_release() and ufshcd_clk_scaling_update_busy().

The next patch in this series will introduce a call to
ufshcd_release_scsi_cmd() in the abort handler.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/ufs/ufshcd.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 03f4772fc2e2..39dcf997a638 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5248,6 +5248,18 @@ static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status)
 	return retval;
 }
 
+/* Release the resources allocated for processing a SCSI command. */
+static void ufshcd_release_scsi_cmd(struct ufs_hba *hba,
+				    struct ufshcd_lrb *lrbp)
+{
+	struct scsi_cmnd *cmd = lrbp->cmd;
+
+	scsi_dma_unmap(cmd);
+	lrbp->cmd = NULL;	/* Mark the command as completed. */
+	ufshcd_release(hba);
+	ufshcd_clk_scaling_update_busy(hba);
+}
+
 /**
  * __ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
@@ -5258,9 +5270,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 {
 	struct ufshcd_lrb *lrbp;
 	struct scsi_cmnd *cmd;
-	int result;
 	int index;
-	bool update_scaling = false;
 
 	for_each_set_bit(index, &completed_reqs, hba->nutrs) {
 		lrbp = &hba->lrb[index];
@@ -5270,26 +5280,19 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 				ufshcd_update_monitor(hba, lrbp);
 			ufshcd_add_command_trace(hba, index, UFS_CMD_COMP);
-			result = ufshcd_transfer_rsp_status(hba, lrbp);
-			scsi_dma_unmap(cmd);
-			cmd->result = result;
-			/* Mark completed command as NULL in LRB */
-			lrbp->cmd = NULL;
+			cmd->result = ufshcd_transfer_rsp_status(hba, lrbp);
+			ufshcd_release_scsi_cmd(hba, lrbp);
 			/* Do not touch lrbp after scsi done */
 			scsi_done(cmd);
-			ufshcd_release(hba);
-			update_scaling = true;
 		} else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
 			lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) {
 			if (hba->dev_cmd.complete) {
 				ufshcd_add_command_trace(hba, index,
 							 UFS_DEV_COMP);
 				complete(hba->dev_cmd.complete);
-				update_scaling = true;
+				ufshcd_clk_scaling_update_busy(hba);
 			}
 		}
-		if (update_scaling)
-			ufshcd_clk_scaling_update_busy(hba);
 	}
 }