Am 03.06.21 um 18:09 schrieb Liam Howlett:
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.howl...@oracle.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 7cb7ffdd1900..dfb5ca3f8da8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -680,9 +680,9 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo,
struct page **pages)
return -ESRCH;
mmap_read_lock(mm);
- vma = find_vma(mm, start);
+ vma = vma_lookup(mm, start);
mmap_read_unlock(mm);
- if (unlikely(!vma || start < vma->vm_start)) {
+ if (unlikely(!vma)) {
r = -EFAULT;
goto out_putmm;
}
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