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-rw-r--r--mm/memory.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c
index c2d4c47..d3ee2ea 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1672,8 +1672,14 @@ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr,
vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP;
err = track_pfn_vma_new(vma, prot, pfn, PAGE_ALIGN(size));
- if (err)
+ if (err) {
+ /*
+ * To indicate that track_pfn related cleanup is not
+ * needed from higher level routine calling unmap_vmas
+ */
+ vma->vm_flags &= ~(VM_IO | VM_RESERVED | VM_PFNMAP);
return -EINVAL;
+ }
BUG_ON(addr >= end);
pfn -= addr >> PAGE_SHIFT;
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