For function dma_unmap_sg(), the <nents> parameter should be number of
elements in the scatterlist prior to the mapping, not after the mapping.
Fix this usage.
Cc: Artur Paszkiewicz <artur.paszkiewicz@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Fixes: d9dcb4ba7("isci: unify isci_host and scic_sds_controller")
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
---
drivers/scsi/isci/request.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index ed197bc..225d947 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -2914,7 +2914,7 @@ static void isci_request_io_request_complete(struct isci_host *ihost,
task->total_xfer_len, task->data_dir);
else /* unmap the sgl dma addresses */
dma_unmap_sg(&ihost->pdev->dev, task->scatter,
- request->num_sg_entries, task->data_dir);
+ task->num_scatter, task->data_dir);
break;
case SAS_PROTOCOL_SMP: {
struct scatterlist *sg = &task->smp_task.smp_req;
--
1.9.1
