Messages in this thread | | | Date | Wed, 17 Oct 2007 10:05:34 +0200 | From | Jens Axboe <> | Subject | Re: [PATCH] swiotlb: fix map_sg failure handling |
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On Wed, Oct 17 2007, FUJITA Tomonori wrote: > sg list elements might not be continuous. > > Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> > --- > lib/swiotlb.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/lib/swiotlb.c b/lib/swiotlb.c > index c419ecf..752fd95 100644 > --- a/lib/swiotlb.c > +++ b/lib/swiotlb.c > @@ -696,7 +696,7 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, > /* Don't panic here, we expect map_sg users > to do proper error handling. */ > swiotlb_full(hwdev, sg->length, dir, 0); > - swiotlb_unmap_sg(hwdev, sg - i, i, dir); > + swiotlb_unmap_sg(hwdev, sgl, i, dir); > sgl[0].dma_length = 0; > return 0; > }
Auch indeed, no math on sg entries! Applied.
-- Jens Axboe
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