aic94xx: fix DMA data direction for SMP requests

DMA-mapped SMP (scsi management protocol) requests going /to/ the device
need the PCI DMA data direction to indicate such.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/scsi/aic94xx/aic94xx_task.c

@@ -451,7 +451,7 @@ static int asd_build_smp_ascb(struct asd_ascb *ascb, struct sas_task *task,
 	struct scb *scb;
 
 	pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_req, 1,
-		   PCI_DMA_FROMDEVICE);
+		   PCI_DMA_TODEVICE);
 	pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_resp, 1,
 		   PCI_DMA_FROMDEVICE);
 
@@ -486,7 +486,7 @@ static void asd_unbuild_smp_ascb(struct asd_ascb *a)
 
 	BUG_ON(!task);
 	pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_req, 1,
-		     PCI_DMA_FROMDEVICE);
+		     PCI_DMA_TODEVICE);
 	pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_resp, 1,
 		     PCI_DMA_FROMDEVICE);
 }