| From f3427df0649a343fc0c7c708e6682366e41d0806 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Tue, 11 Sep 2018 14:18:03 +0530 |
| Subject: scsi: pm80xx: Corrected dma_unmap_sg() parameter |
| |
| From: Deepak Ukey <deepak.ukey@microchip.com> |
| |
| [ Upstream commit 76cb25b058034d37244be6aca97a2ad52a5fbcad ] |
| |
| For the function dma_unmap_sg(), the <nents> parameter should be number of |
| elements in the scatter list prior to the mapping, not after the mapping. |
| |
| Signed-off-by: Deepak Ukey <deepak.ukey@microchip.com> |
| Signed-off-by: Viswas G <Viswas.G@microchip.com> |
| Acked-by: Jack Wang <jinpu.wang@profitbricks.com> |
| Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/scsi/pm8001/pm8001_sas.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c |
| index 947d6017d004c..576a0f091933b 100644 |
| --- a/drivers/scsi/pm8001/pm8001_sas.c |
| +++ b/drivers/scsi/pm8001/pm8001_sas.c |
| @@ -466,7 +466,7 @@ err_out: |
| dev_printk(KERN_ERR, pm8001_ha->dev, "pm8001 exec failed[%d]!\n", rc); |
| if (!sas_protocol_ata(t->task_proto)) |
| if (n_elem) |
| - dma_unmap_sg(pm8001_ha->dev, t->scatter, n_elem, |
| + dma_unmap_sg(pm8001_ha->dev, t->scatter, t->num_scatter, |
| t->data_dir); |
| out_done: |
| spin_unlock_irqrestore(&pm8001_ha->lock, flags); |
| -- |
| 2.20.1 |
| |