Commit b8d9905d authored by Joerg Roedel's avatar Joerg Roedel
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AMD IOMMU: __unmap_single: check for bad_dma_address instead of 0 



Impact: minor fix

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 8ad909c4

arch/x86/kernel/amd_iommu.c

+2 −1
Original line number Diff line number Diff line
@@ -983,7 +983,8 @@ static void __unmap_single(struct amd_iommu *iommu, 
	dma_addr_t i, start;

	unsigned int pages;



	if ((dma_addr == 0) || (dma_addr + size > dma_dom->aperture_size))

	if ((dma_addr == bad_dma_address) ||

	    (dma_addr + size > dma_dom->aperture_size))

		return;



	pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);