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@Oracle.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; }