summaryrefslogtreecommitdiff
path: root/kernel/dma
diff options
context:
space:
mode:
authorMartin Oliveira <martin.oliveira@eideticom.com>2021-07-29 14:15:38 -0600
committerChristoph Hellwig <hch@lst.de>2021-08-09 17:13:06 +0200
commit66ab63104f9cab09209851fef168f5972d791903 (patch)
treee476b97c862cdf8323469828bc364b2deeafb018 /kernel/dma
parent183dc86335e69f516b94f169afd784cf97cb8421 (diff)
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: Martin Oliveira <martin.oliveira@eideticom.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/dummy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/dummy.c b/kernel/dma/dummy.c
index eacd4c5b10bf..b492d59ac77e 100644
--- a/kernel/dma/dummy.c
+++ b/kernel/dma/dummy.c
@@ -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)