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parisc: return error code from .map_sg() ops 

The .map_sg() op now expects an error code instead of zero on failure.
Return -EINVAL if the ioc cannot be obtained.

Signed-off-by: Martin Oliveira <martin.oliveira@eideticom.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Martin Oliveira 2021-07-29 14:15:34 -06:00 committed by Christoph Hellwig
parent ba3a0482db
commit 9a22f2f343
2 changed files with 2 additions and 2 deletions
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2
drivers/parisc/ccio-dma.c
View File

@ -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 -EINVAL;
DBG_RUN_SG("%s() START %d entries\n", __func__, nents);

2
drivers/parisc/sba_iommu.c
View File

@ -947,7 +947,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
ioc = GET_IOC(dev);
if (!ioc)
return 0;
return -EINVAL;
/* Fast path single entry scatterlists. */
if (nents == 1) {