[PATCH v1 12/16] parisc: return error code from .map_sg() ops

[Logan Gunthorpe <logang@xxxxxxxxxxxx>]

From: Martin Oliveira <martin.oliveira@xxxxxxxxxxxxx>

The .map_sg() op now expects an error code instead of zero on failure.

Signed-off-by: Martin Oliveira <martin.oliveira@xxxxxxxxxxxxx>
Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
---
 drivers/parisc/ccio-dma.c  | 2 +-
 drivers/parisc/sba_iommu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b5f9ee81a46c..a3a5cfda3d93 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -918,7 +918,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, 
int nents,
        BUG_ON(!dev);
        ioc = GET_IOC(dev);
        if (!ioc)
-               return 0;
+               return -ENODEV;
        
        DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index dce4cdf786cd..9a6671a230ee 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -947,7 +947,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, 
int nents,
 
        ioc = GET_IOC(dev);
        if (!ioc)
-               return 0;
+               return -ENODEV;
 
        /* Fast path single entry scatterlists. */
        if (nents == 1) {
-- 
2.20.1