Commit f2030223 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Stefan Richter
Browse files

firewire: sbp2: use scsi_dma_(un)map 



Use the scsi_dma_map/scsi_dma_unmap helper to simplify the code
a little.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent 473ffe65

drivers/firewire/sbp2.c

+4 −9
Original line number Diff line number Diff line
@@ -1296,10 +1296,7 @@ static struct fw_driver sbp2_driver = { 
static void sbp2_unmap_scatterlist(struct device *card_device,

				   struct sbp2_command_orb *orb)

{

	if (scsi_sg_count(orb->cmd))

		dma_unmap_sg(card_device, scsi_sglist(orb->cmd),

			     scsi_sg_count(orb->cmd),

			     orb->cmd->sc_data_direction);

	scsi_dma_unmap(orb->cmd);



	if (orb->request.misc & cpu_to_be32(COMMAND_ORB_PAGE_TABLE_PRESENT))

		dma_unmap_single(card_device, orb->page_table_bus,
@@ -1405,9 +1402,8 @@ static int sbp2_map_scatterlist(struct sbp2_command_orb *orb, 
	struct scatterlist *sg = scsi_sglist(orb->cmd);

	int i, n;



	n = dma_map_sg(device->card->device, sg, scsi_sg_count(orb->cmd),

		       orb->cmd->sc_data_direction);

	if (n == 0)

	n = scsi_dma_map(orb->cmd);

	if (n <= 0)

		goto fail;



	/*
@@ -1453,8 +1449,7 @@ static int sbp2_map_scatterlist(struct sbp2_command_orb *orb, 
	return 0;



 fail_page_table:

	dma_unmap_sg(device->card->device, scsi_sglist(orb->cmd),

		     scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction);

	scsi_dma_unmap(orb->cmd);

 fail:

	return -ENOMEM;

}