Commit 66ab6310 authored by Martin Oliveira's avatar Martin Oliveira Committed by Christoph Hellwig
Browse files

dma-mapping: return error code from dma_dummy_map_sg() 



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

The only errno to return is -EINVAL in the case when DMA is not
supported.

Signed-off-by: default avatarMartin Oliveira <martin.oliveira@eideticom.com>
Signed-off-by: default avatarLogan Gunthorpe <logang@deltatee.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 183dc863

kernel/dma/dummy.c

+1 −1
Original line number Diff line number Diff line
@@ -22,7 +22,7 @@ static int dma_dummy_map_sg(struct device *dev, struct scatterlist *sgl, 
		int nelems, enum dma_data_direction dir,

		unsigned long attrs)

{

	return 0;

	return -EINVAL;

}



static int dma_dummy_supported(struct device *hwdev, u64 mask)