ata: libata-scsi: simplify ata_scsi_requeue_deferred_qc()

In ata_scsi_requeue_deferred_qc(), use ata_qc_done() instead of calling
ata_qc_free() and scsi_done() directly.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>

Author: damien-lemoal

drivers/ata/libata-scsi.c

@@ -1685,7 +1685,6 @@ void ata_scsi_deferred_qc_work(struct work_struct *work)
 void ata_scsi_requeue_deferred_qc(struct ata_port *ap)
 {
 	struct ata_queued_cmd *qc = ap->deferred_qc;
-	struct scsi_cmnd *scmd;
 
 	lockdep_assert_held(ap->lock);
 
@@ -1697,11 +1696,9 @@ void ata_scsi_requeue_deferred_qc(struct ata_port *ap)
 	if (!qc)
 		return;
 
-	scmd = qc->scsicmd;
 	ap->deferred_qc = NULL;
-	ata_qc_free(qc);
-	scmd->result = (DID_SOFT_ERROR << 16);
-	scsi_done(scmd);
+	qc->scsicmd->result = (DID_SOFT_ERROR << 16);
+	ata_qc_done(qc);
 }
 
 static void ata_scsi_schedule_deferred_qc(struct ata_port *ap)