Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: Laurent Dufour <ldufour@xxxxxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Acked-by: Davidlohr Bueso <dbueso@xxxxxxx>
---
lib/test_hmm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index 80a78877bd93..15f2e2db77bc 100644
--- a/lib/test_hmm.c
+++ b/lib/test_hmm.c
@@ -686,9 +686,8 @@ static int dmirror_migrate(struct dmirror *dmirror,
mmap_read_lock(mm);
for (addr = start; addr < end; addr = next) {
- vma = find_vma(mm, addr);
- if (!vma || addr < vma->vm_start ||
- !(vma->vm_flags & VM_READ)) {
+ vma = vma_lookup(mm, addr);
+ if (!vma || !(vma->vm_flags & VM_READ)) {
ret = -EINVAL;
goto out;
}
--
2.30.2
