[PATCH v2] drm/radeon: check bo_va->bo is non-NULL before using it
Alex Deucher
alexdeucher at gmail.com
Tue Jun 25 17:44:15 UTC 2024
On Tue, Jun 25, 2024 at 10:32 AM Pierre-Eric Pelloux-Prayer
<pierre-eric.pelloux-prayer at amd.com> wrote:
>
> The call to radeon_vm_clear_freed might clear bo_va->bo, so
> we have to check it before dereferencing it.
>
> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/radeon/radeon_gem.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
> index 3fec3acdaf28..27225d1fe8d2 100644
> --- a/drivers/gpu/drm/radeon/radeon_gem.c
> +++ b/drivers/gpu/drm/radeon/radeon_gem.c
> @@ -641,7 +641,7 @@ static void radeon_gem_va_update_vm(struct radeon_device *rdev,
> if (r)
> goto error_unlock;
>
> - if (bo_va->it.start)
> + if (bo_va->it.start && bo_va->bo)
> r = radeon_vm_bo_update(rdev, bo_va, bo_va->bo->tbo.resource);
>
> error_unlock:
> --
> 2.45.2
>
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