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authorJoerg Roedel <jroedel@suse.de>2015-11-17 18:11:36 +0300
committerJoerg Roedel <jroedel@suse.de>2015-12-14 17:37:47 +0300
commit7b5cc1a9c9f4096555345c365508d727149553fe (patch)
treea704d1bec65c7bda54af3dffbeca97feeb09c57c /drivers/mfd/rc5t583-irq.c
parent9f9499ae8e6415cefc4fe0a96ad0e27864353c89 (diff)
downloadlinux-7b5cc1a9c9f4096555345c365508d727149553fe.tar.xz
iommu/amd: Do proper access checking before calling handle_mm_fault()
The handle_mm_fault function expects the caller to do the access checks. Not doing so and calling the function with wrong permissions is a bug (catched by a BUG_ON). So fix this bug by adding proper access checking to the io page-fault code in the AMD IOMMUv2 driver. Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-By: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/mfd/rc5t583-irq.c')
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