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authorChristoph Hellwig <hch@lst.de>2019-01-04 09:50:33 +0100
committerChristoph Hellwig <hch@lst.de>2019-01-05 08:27:32 +0100
commit06f55fd2d22742ed7e725124dfea68936d12ce40 (patch)
tree5bbf65577198f5171ec2ccc890ce9f9cb5322400 /kernel/dma/remap.c
parentdma-mapping: remove a few unused exports (diff)
downloadlinux-06f55fd2d22742ed7e725124dfea68936d12ce40.tar.xz
linux-06f55fd2d22742ed7e725124dfea68936d12ce40.zip
x86/amd_gart: fix unmapping of non-GART mappings
In many cases we don't have to create a GART mapping at all, which also means there is nothing to unmap. Fix the range check that was incorrectly modified when removing the mapping_error method. Fixes: 9e8aa6b546 ("x86/amd_gart: remove the mapping_error dma_map_ops method") Reported-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Michal Kubecek <mkubecek@suse.cz>
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