diff mbox series

[V2,2/4] pm80xx : Corrected dma_unmap_sg() parameter.

Message ID 20180911084805.4802-3-Viswas.G@microsemi.com (mailing list archive)
State Accepted
Headers show
Series pm0xx : Updates for driver version 0.1.39 | expand

Commit Message

Viswas G Sept. 11, 2018, 8:48 a.m. UTC 
From: Deepak Ukey <deepak.ukey@microchip.com>

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> 
---
 drivers/scsi/pm8001/pm8001_sas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index d8249675371e..e063faad66f5 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -488,7 +488,7 @@  static int pm8001_task_exec(struct sas_task *task,
 	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);