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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2015-12-15 14:51:17 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2015-12-15 14:51:17 +0100
commite6d111cd909551cec5902358db1e25dcaa8c86bb (patch)
tree99673aec563c76a1a4d7ca2d31b90b47549ae40b /drivers/iommu/amd_iommu_v2.c
parent1dcb97e485420a25461cc44d43f987c8bbf50e7a (diff)
parent07cc49f66973f49a391c91bf4b158fa0f2562ca8 (diff)
Merge tag 'v4.1.15' into toradex_vf_4.1-nextColibri_VF_LinuxImageV2.5Beta3_20151215
This is the 4.1.15 stable release
Diffstat (limited to 'drivers/iommu/amd_iommu_v2.c')
-rw-r--r--drivers/iommu/amd_iommu_v2.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 3465faf1809e..45087c3e5c57 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -508,6 +508,13 @@ static void do_fault(struct work_struct *work)
goto out;
}
+ if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))) {
+ /* handle_mm_fault would BUG_ON() */
+ up_read(&mm->mmap_sem);
+ handle_fault_error(fault);
+ goto out;
+ }
+
ret = handle_mm_fault(mm, vma, address, write);
if (ret & VM_FAULT_ERROR) {
/* failed to service fault */