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scsi: pm80xx: Corrected dma_unmap_sg() parameter

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[ 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>
This commit is contained in:
Deepak Ukey 2018-09-11 14:18:03 +05:30 committed by Greg Kroah-Hartman
parent 674d72a288
commit 89f4fa1abd
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/pm8001/pm8001_sas.c
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@ -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);