Commit 27db6a00 authored Apr 23, 2018 by Dmitry Osipenko Committed by Thierry Reding May 17, 2018

gpu: host1x: Fix dma_free_wc() argument in the error path



If IOVA allocation or IOMMU mapping fails, dma_free_wc() is invoked with
size=0 because of a typo, that triggers "kernel BUG at mm/vmalloc.c:124!".

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

parent a43d0a00

drivers/gpu/host1x/cdma.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -127,7 +127,7 @@ static int host1x_pushbuffer_init(struct push_buffer *pb)
		iommu_free_iova:
		__free_iova(&host1x->iova, alloc);
		iommu_free_mem:
		dma_free_wc(host1x->dev, pb->alloc_size, pb->mapped, pb->phys);
		dma_free_wc(host1x->dev, size, pb->mapped, pb->phys);

		return err;
		}

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