[PATCH] drm/amdgpu/ttm: Fix memory leak userptr pages

[Alex Deucher]

Applied.  Thanks!

Alex

On Wed, Mar 17, 2021 at 12:09 PM Daniel Gomez <daniel at qtec.com> wrote:
>
> If userptr pages have been pinned but not bounded,
> they remain uncleared.
>
> Signed-off-by: Daniel Gomez <daniel at qtec.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 9fd2157b133a..50c2b4827c13 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -1162,13 +1162,13 @@ static void amdgpu_ttm_backend_unbind(struct ttm_bo_device *bdev,
>         struct amdgpu_ttm_tt *gtt = (void *)ttm;
>         int r;
>
> -       if (!gtt->bound)
> -               return;
> -
>         /* if the pages have userptr pinning then clear that first */
>         if (gtt->userptr)
>                 amdgpu_ttm_tt_unpin_userptr(bdev, ttm);
>
> +       if (!gtt->bound)
> +               return;
> +
>         if (gtt->offset == AMDGPU_BO_INVALID_OFFSET)
>                 return;
>
> --
> 2.30.2
>
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