# \[PATCH v1 08/16\] MIPS/jazzdma: return error code from jazz\_dma\_map\_sg() - From: Logan Gunthorpe \ - Date: 2021-07-15 16:46:39 - List: linux-alpha - Page: https://ratatoskr.run/linux-alpha/2021/07/1445846 - Thread: https://ratatoskr.run/linux-alpha/2021/07/1445836/t.md ```text From: Martin Oliveira The .map_sg() op now expects an error code instead of zero on failure. vdma_alloc() may fail for different reasons, but since it only supports indicating an error via a return of DMA_MAPPING_ERROR, we coalesce the different reasons into -EINVAL. Signed-off-by: Martin Oliveira Signed-off-by: Logan Gunthorpe Cc: Thomas Bogendoerfer --- arch/mips/jazz/jazzdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index 461457b28982..3b99743435db 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -552,7 +552,7 @@ static int jazz_dma_map_sg(struct device *dev, struct scatterlist *sglist, dir); sg->dma_address = vdma_alloc(sg_phys(sg), sg->length); if (sg->dma_address == DMA_MAPPING_ERROR) - return 0; + return -EINVAL; sg_dma_len(sg) = sg->length; } -- 2.20.1 ```