dma-direct: return appropriate error code from dma_direct_map_sg()
authorLogan Gunthorpe <logang@deltatee.com>
Thu, 29 Jul 2021 20:15:20 +0000 (14:15 -0600)
committerChristoph Hellwig <hch@lst.de>
Mon, 9 Aug 2021 15:13:04 +0000 (17:13 +0200)
commitc81be74e7d790f090d3c8a52e20a334dc2506a3f
treee7b9a8a703e6487d4c4e12f5475aba3683a4b4c2
parentfffe3cc8c2194f60c4af4fac7f27d25e8828f001
dma-direct: return appropriate error code from dma_direct_map_sg()

Now that the map_sg() op expects error codes instead of return zero on
error, convert dma_direct_map_sg() to return an error code. Per the
documentation for dma_map_sgtable(), -EIO is returned due to an
DMA_MAPPING_ERROR with unknown cause.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
kernel/dma/direct.c