tjh.dev / kernel
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AMD IOMMU: __unmap_single: check for bad_dma_address instead of 0

Impact: minor fix

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

Joerg Roedel b8d9905d 8ad909c4

+2 -1
unified split
+2 -1
arch/x86/kernel/amd_iommu.c
··· 983 983 dma_addr_t i, start; 984 984 unsigned int pages; 985 985 986 - if ((dma_addr == 0) || (dma_addr + size > dma_dom->aperture_size)) 986 + if ((dma_addr == bad_dma_address) || 987 + (dma_addr + size > dma_dom->aperture_size)) 987 988 return; 988 989 989 990 pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);