diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 0208906..e2e146a 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -401,7 +401,8 @@
 	case ATA_PROT_NODATA:
 		printk(KERN_ERR "ata%u: command timeout\n", ap->id);
 		drv_stat = ata_wait_idle(ap);
-		ata_qc_complete(qc, __ac_err_mask(drv_stat));
+		qc->err_mask |= __ac_err_mask(drv_stat);
+		ata_qc_complete(qc);
 		break;
 
 	default:
@@ -410,7 +411,8 @@
 		printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
 		       ap->id, qc->tf.command, drv_stat);
 
-		ata_qc_complete(qc, ac_err_mask(drv_stat));
+		qc->err_mask |= ac_err_mask(drv_stat);
+		ata_qc_complete(qc);
 		break;
 	}
 
@@ -422,21 +424,21 @@
 static inline unsigned int pdc_host_intr( struct ata_port *ap,
                                           struct ata_queued_cmd *qc)
 {
-	unsigned int handled = 0, err_mask = 0;
+	unsigned int handled = 0;
 	u32 tmp;
 	void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
 
 	tmp = readl(mmio);
 	if (tmp & PDC_ERR_MASK) {
-		err_mask = AC_ERR_DEV;
+		qc->err_mask |= AC_ERR_DEV;
 		pdc_reset_port(ap);
 	}
 
 	switch (qc->tf.protocol) {
 	case ATA_PROT_DMA:
 	case ATA_PROT_NODATA:
-		err_mask |= ac_err_mask(ata_wait_idle(ap));
-		ata_qc_complete(qc, err_mask);
+		qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
+		ata_qc_complete(qc);
 		handled = 1;
 		break;