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Commit a66a544d authored by Deepak Ukey's avatar Deepak Ukey Committed by Greg Kroah-Hartman
Browse files

scsi: pm80xx: Corrected dma_unmap_sg() parameter 



[ 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: default avatarDeepak Ukey <deepak.ukey@microchip.com>
Signed-off-by: default avatarViswas G <Viswas.G@microchip.com>
Acked-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent ac892349

drivers/scsi/pm8001/pm8001_sas.c

+1 −1
Original line number Diff line number Diff line
@@ -466,7 +466,7 @@ 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);